Updated HAL files of TMPM4G9

Update HAL CRC API ...

* Change "is supported" check to be a macro, so it can be done at
  compile-time.
* Eliminate weird shift on 7-bit CRCs.
* Add support for 32-bit CRCs and reversals to TMPM3HQ.

Revert "MbedCRC and CRC HAL revisions"

Update HAL CRC API ...

* Change "is supported" check to be a macro, so it can be done at
  compile-time.
* Eliminate weird shift on 7-bit CRCs.
* Add support for 32-bit CRCs and reversals to TMPM3HQ.

Clean up ARM toolchain heap+stack setup in targets ...

ARM Compiler 6.13 testing revealed linker errors pointing out
conflicting use of `__user_setup_stackheap` and
`__user_initial_stackheap` in some targets. Remove the unwanted
`__user_initial_stackheap` from the targets - the setup is
centralised in the common platform code.

Looking into this, a number of other issues were highlighted

* Almost all targets had `__initial_sp` hardcoded in assembler,
  rather than getting it from the scatter file. This was behind
  issue #11313. Fix this generally.
* A few targets' `__initial_sp` values did not match the scatter
  file layout, in some cases meaning they were overlapping heap
  space. They now all use the area reserved in the scatter file.
  If any problems are seen, then there is an error in the
  scatter file.
* A number of targets were reserving unneeded space for heap and
  stack in their startup assembler, on top of the space reserved in
  the scatter file, so wasting a few K. A couple were using that
  space for the stack, rather than the space in the scatter file.

To clarify expected behaviour:

* Each scatter file contains empty regions `ARM_LIB_HEAP` and
  `ARM_LIB_STACK` to reserve space. `ARM_LIB_STACK` is sized
  by the macro `MBED_BOOT_STACK_SIZE`, which is set by the tools.
  `ARM_LIB_HEAP` is generally the space left over after static
  RAM and stack.
* The address of the end of `ARM_LIB_STACK` is written into the
  vector table and on reset the CPU sets MSP to that address.
* The common platform code in Mbed OS provides `__user_setup_stackheap`
  for the ARM library. The ARM library calls this during startup, and
  it calls `__mbed_user_setup_stackheap`.
* The default weak definition of `__mbed_user_setup_stackheap` does not
  modify SP, so we remain on the boot stack, and the heap is set to
  the region described by `ARM_LIB_HEAP`. If `ARM_LIB_HEAP` doesn't
  exist, then the heap is the space from the end of the used data in
  `RW_IRAM1` to the start of `ARM_LIB_STACK`.
* Targets can override `__mbed_user_setup_stackheap` if they want.
  Currently only Renesas (ARMv7-A class) devices do.
* If microlib is in use, then it doesn't call `__user_setup_stackheap`.
  Instead it just finds and uses `ARM_LIB_STACK` and `ARM_LIB_HEAP`
  itself.

Added new features to TMPM46B

Merge pull request #10873 from ganesh-ramachandran/m3hq_newfeatures ...

Add new features to Toshiba's TMPM3HQ

Merge pull request #10874 from ganesh-ramachandran/m3h6_newfeatures ...

Add new features to Toshiba's TMPM3H6

Changes for RTC peripheral status

Changes for RTC peripheral status

Changes for RTC peripheral status

Added new features to TMPM3HQ

Removed dead code in TMPM4G9 - rtc_api.c

Added SPDX identifier

Added new features to TMPM4G9

Added new features to TMPM3H6

Merge pull request #10857 from ARMmbed/feature-watchdog ...

Add Watchdog and ResetReason

HAL I2C: adds missing DEVICE_I2C guards

fix(hal-watchdog): Guard TMPM 'ResetReason' code behind feature flag

Added reset_reason feature for TMPM3HQ

Added reset_reason feature for TMPM3H6 & TMPM4G9

Added reset_reason feature for TMPM066 & TMPM46B

Fixed support for DigitalOut(NC) instantiation

Error check for reallocation memory fail

TARGET_TOSHIBA :Setup heap limit and size

Add HAL API for spi pinmap ...

Add the functions to get spi pinmaps to all targets.

Add HAL API for serial pinmap ...

Add the functions serial_tx_pinmap, serial_rx_pinmap, serial_cts_pinmap
and serial_rts_pinmap to all targets.

Add HAL API for pwmout pinmap ...

Add the function pwm_pinmap to all targets.

Add HAL API for i2c pinmap ...

Add the functions i2c_master_sda_pinmap, i2c_master_scl_pinmap,
i2c_slave_sda_pinmap and i2c_slave_scl_pinmap to all targets.

Add HAL API for analog out pinmap ...

Add the function analogout_pinmap to all targets.