Remove all source files exclusive to Arm Compiler and IAR (#159) ...

* Remove all source files exclusive to Arm Compiler and IAR

* Also remove 'TOOLCHAIN_ARM'

* Remove targets.json entries for ARM and IAR

GPIO: Use uintptr_t for gpio_irq_api context ...

The HAL gpio_irq_api stores object IDs, which serve as a form of context
for the dispatch of the interrupt handler in the drivers level
InterruptIn Class. The way this is achieved is that the InterruptIn
Class casts its address to uint32_t, which is stored as the ID.
This results in compilation failure when the size of an object pointer
is greater than uint32_t, for example when building on a PC for unit
testing.

In order to allow Unit Testing of the InterruptIn Class, we replace the
use of uint32_t with uintptr_t (type capable of holding a pointer),
which allows portability and expresses intentions more clearly.
In aid of this latter goal, we also replace the use of the name "id"
with "context", to improve clarity - these are addresses of the context
related to that callback.

K64F: Fix pin names and migrate to Arduino Uno form factor ...

Fix pin names of K64F with the following from the latest guidelines:
* LEDs and buttons are defined as macros, digital and analog pins as
enums.
* No duplicated pin names with the same value.
* The Arduino form factor is deprecated in favour of Arduino Uno.

Note: The pins `SPI_xxx` are for SD card only, but the names are kept
for backward compatibility (i.e. no breaking change until the next
Mbed OS major version). The general purpose Arduino Uno SPI pins
(`ARDUINO_UNO_SPI_xxx`) are different and also available.

Update UART pin names & add MBED_CONF_TARGET_STDIO_UART overrides

Merge pull request #14428 from 0xc0170/cmake-fix-targets-labels ...

CMake targets: remove labels usage, not required anymore

Add standard pin-names validation script & tests

CMake Freescale: add freescale prefix to avoid conflict with NXP

Update serial_api.c

Merge pull request #14291 from harmut01/baremetal_freescale ...

Add bare metal support to freescale targets

Merge pull request #14306 from hugueskamba/hk_cmake_create_cmsis_cortex_libs ...

CMake: Create CMSIS library targets to remove dependency on MBED_TARGET_LABELS

Create FLASH CMSIS ALGO target to remove dependency on MBED_TARGET_LABELS ...

This goes towards eventually removing reliance on targets.json to specify
the requirements of Mbed targets.

CMake: Create CMSIS library targets to remove dependency on MBED_TARGET_LABELS ...

This goes towards eventually removing reliance on targets.json to specify
the requirements of Mbed targets.

uARM: Remove dependencies from Freescale targets

Fix copyright in TARGET_KW41Z/CMakeLists.txt ...

Co-authored-by: Harrison Mutai <70651665+harmut01@users.noreply.github.com>

CMake: Refactor Freescale targets ...

Refactor all Freescale targets to be CMake buildsystem targets. This removes
the need for checking MBED_TARGET_LABELS repeatedly and allows us to be
more flexible in the way we include MBED_TARGET source in the build.

A side effect of this is it will allow us to support custom targets
without breaking the build for 'standard' targets, as we use CMake's
standard mechanism for adding build rules to the build system, rather
than implementing our own layer of logic to exclude files not needed for
the target being built. Using this approach, if an MBED_TARGET is not
linked to using `target_link_libraries` its source files will not be
added to the build. This means custom target source can be added to the
user's application CMakeLists.txt without polluting the build system
when trying to compile for a standard MBED_TARGET.

NXP: Fix heap size formula in scatter files ...

The heap size was incorrectly calculated.
This fixes it by subtracting the Stack size, any memory chunks allocated
before the start of the application (for vectors and/or crash report), and
finally the size of the application from the total RAM size.

Merge pull request #13952 from hugueskamba/hk_cmake_freescale_support ...

CMake: Add support for all Freescale Mbed targets

Merge pull request #13950 from hugueskamba/hk_remove_freescale_kl27z ...

Freescale: Remove KL27Z files

CMake: Add support for Freescale MCUXpresso_MCUS targets ...

All Freescale MCUXpresso_MCUS targets supported by Mbed OS
can now be built with CMake.

CMake: Add support for Freescale KLXX targets ...

All Freescale KLXX targets supported by Mbed OS
can now be built with CMake.

Freescale: Remove KL27Z files ...

Mbed OS 6 does not support the KL27Z target

Freescale: Remove K20XX files ...

Mbed OS 6 does not support K20XX targets

fix incorrect condition

fix #error condition and message to include interrupts and flash config

K64F, K66F - Remove flash_config area if MBED_APP_START isn't zero ...

This will also fix GCC_ARM non-contiguous FW:
Issue: https://github.com/ARMmbed/mbed-os/issues/13831

CMake: Use relative paths to list source files and directories ...

The absolute path is still required for listing linker
files as they are referenced from a function in the top
level CMake input source file.

CMake: add mbed-os and mbed-baremetal targets ...

mbed-os consists of mbed-core and mbed-rtos
mbed-baremetal consists of mbed-core

The main change is for mbed-core. Changing from object library to be interface. This way it allows us to do the above to have 2 main targets for users to use.

This should be backward compatible change as mbed-os target we used contains the same files/options as previously set.

CMake: Rename CMake targets ...

* mbed-os renamed mbed-core
* mbed-os-<COMPONENT> renamed mbed-<COMPONENT>

CMake: replace usage of the mbed_add_cmake_directory_if_labels() function (#13754) ...

Directories that start with special prefixes (TARGET_, FEATURE_, COMPONENT_)  are added to the build based on Mbed target configuration from targets.json instead of calling utility function mbed_add_cmake_directory_if_labels().

CMake: Add support for K66F