Clean up top-level build file and build options, fix build issues on MinGW

Update Mbed version block

semihosting: Fix typo in semihost_rename ...

Fix typo in semihost_rename. Now it actually sends the `new_name` as well as the `old_name`.

Fix strrchr() not declared for IAR ...

For IAR, strrchr() is used in MBED_FILENAME macro definition. Declare it via string.h to fix compile error when MBED_FILENAME is expanded.

Use MBED_FILENAME instead of __FILE__ in MBED_ASSERT ...

To actually get the filename in the error reporting struct instead of
the start of the path, let's use the MBED_FILENAME macro that MBED_ERROR
et al uses.

Allow unit tests to be compiled with -fno-exception

Deprecate instead of remove index_type

mstd::span rename index_type to size_type according to spec

Update Mbed version block

Merge pull request #14610 from jeromecoutant/DEV_SLEEP_TRACE ...

Power management stat : add verbosity level for MBED_SLEEP_TRACING_ENABLED

Power management stat : add verbosity level for MBED_SLEEP_TRACING_ENABLED ...

Full verbosity is adding a console line for each lock/unlock API call

- stats can be enabled with json config
- default configuration is full verbosity and add a console line for each lock/unlock command
- for STM32 targets, verbosity is reduced by default

Code style violation corrected

Fixed floating point formatting ...

When decimal_prec is 0 and the value is negative and needs rounding subtract 1, instead of adding 1
When decimal_prec > 0 round before printing the integer part, instead of after

Added unit test for floating point formatting ...

And added a bonus test for string padding

Update Mbed version block

PSA: Reinstate deprecated macro ...

PSA_ALG_AEAD_WITH_TAG_LENGTH has been replaced with
PSA_ALG_AEAD_WITH_SHORTENED_TAG upstream. We could just update
psa_util.h to use the new macro, but we still have some targets that
only support older versions of PSA, so we reinstate the removed macro.

psa: Include mbedtls_svc_key_id.h for TF-M ...

We have added definitions that are needed by Mbed TLS's PSK key exchange
but missing from TF-M's PSA to `mbedtls_svc_key_id.h`. To pick up those
definitions, TF-M's `psa/crypto_values.h' needs to include
`mbedtls_svc_key_id.h`.

tfm: Add mbedtls_ecc_group_to_psa.h to crypto_extra.h ...

Include mbedtls_ecc_group_to_psa.h from crypto_extra.h so that clients
of PSA within Mbed OS do not need to behave differently depending on
which PSA implementation they are using.

This solution is not ideal as it makes it more difficult to update the
TF-M-provided psa/crypto_extra.h. We'll have to see what other options
we have for including additional headers based on the Mbed OS
configuration.

tfm: Move tfm_ns_interface.c ...

tfm_ns_interface.c is intended to be overriden by clients to support
different targets. We copy this file from upstream into the mbed-os
platform library. We also have a specific "strong" overridden version
for the NU_M2354 target, which is located in its target library.
Previously the implementations in the platform library were decorated
with __attribute__(weak), and we provided a strong definition for the
NU_M2354 target. This worked fine because of weak linking, the linker
will pick the first "strong" definition and use that, avoiding any ODR
violations. However, upstream have removed __attribute__(weak) from the
function definitions, which caused multiply defined symbol errors when
trying to build the NU_M2354 target.

To work around the above issue, we remove the common definition in the
platform library; instead we copy the file to the Musca B1 and Musca S1
target libaries. This means the appropriate tfm_ns_interface.c is only
included in the build when compiling for the specific target which uses
it.

"Update directory platform/FEATURE_EXPERIMENTAL_API/FEATURE_PSA/TARGET_TFM/TARGET_TFM_LATEST"

Merge pull request #15067 from ARMmbed/fix_flash_overflow_callback_big_test ...

Greentea: Fix flash overflown issue in callback_big test

Greentea: Fix flash overflown issue in callback_big test ...

The "Callback_big" greentea test has six test cases that require
a minimum above 36kb ROM to build all test cases. LPC1114 target
has only 32KB ROM memory, so the limit 6th test case to include
or exclude based on the target minimum ROM size.

Note:
In LPC1114 target, callback_big test has ROM overflow build issue
for both Mbed CLI1 and CLI2.

CMake: Fix platform wait_ns greentea test Cmake ...

Mbed CLI 2 generates TARGET_ARM_FM macro as a string in mbed_config.cmake
under the MBED_TARGET_DEFINITIONS list. Fix the "if defined" check for
TARGET_ARM_FM by searching for the TARGET_ARM_FM string in the
MBED_TARGET_DEFINITIONS list. This allows us to skip or include the test from CMake.

Merge pull request #15045 from LDong-Arm/malloc_newlib_nano ...

Workaround for a bug in malloc() from newlib-nano 4.1.0 (in GCC 10.3)

Workaround for a bug in malloc() from newlib-nano 4.1.0 ...

The commit 84d0689 "Nano-malloc: Fix for unwanted external heap
fragmentation" from newlib 4.1.0 introduced several optimizations,
one of which is as follows:

When the last chunk in the free list is smaller than requested,
nano_malloc() calls sbrk(0) to see if the heap's current head is
adjacent to this chunk, and if so it asks sbrk() to allocate the
difference in bytes only and expands the current chunk.

This doesn't work if the heap consists of non-contiguous regions.
sbrk(0) returns the the current region's head if the region has any
remaining capacity. But if this capacity is not enough for the second
(non-trivial) call to sbrk() described above, allocation will happen
from the next region if available. Expanding the current chunk won't
work and will result in a segmentation fault.

So this optimization needs to be reverted in order to bring back
compatibility with non-contiguous heaps. Before the next version
of newlib becomes available and gets updated in the GCC Arm Embedded
Toolchain, we work around this issue by including the fix in Mbed OS.
The linker prioritizes malloc() from the project to the one from the
toolchain.

Merge pull request #15019 from ARMmbed/refactor_platform_greentea_cmake ...

Refactor platform greentea cmake

Merge pull request #15012 from felser/MTS_DRAGONFLY_L496VG ...

Add platform MTS_DRAGONFLY_L496VG

Update platform CMake to include greentea test dir

CMake: greentea: Add skip reason to platform test

CMake: Refactor platform greentea test CMake ...

Initially, every library greentea test has its project() creation in
their CMake. As running greentea using CTest move all greentea test
suite under one global project mbed-os and MBED_CONFIG_PATH set at
the root mbed os CMake under the condition BUILD_GREENTEA_TESTS
check so refactored platform greentea CMake accordingly.