Locate *lwip_* in XRAM to fix IRAM OOM

1. Fix clone SHA context error. Convert SHA H/W context to SHA S/W context due to just one instance of SHA H/W.
2. Fix partial update error.

Error occurs as newly scheduled alarm is behind now due to signed/unsigned comparison pitfall:
-1 < 1u ==> 0 or 1

The original fix cannot handle both wrap-around and scheduled alarm behind now well.
Leave wrap-around as known issue.

Some application requires GPIO IRQ to be low latency. To complement it, open up GPIO IRQ debounce configuration through mbed_lib.json.

1. Fix pin definition error regarding SD.
2. Fix pin definition error regarding I2C.
3. Fix pin definition error regarding SPI.
4. Add pinmap for SD.

1. Move USBHALHost_M451.cpp and USBHALHost_NUC472.cpp.
2. Move TARGET_M451/mbed_lib.json.
3. Move TARGET_NUC472/crypto.
4. Move TARGET_NUC472/mbed_lib.json.

1. Move M451Series.h to device.
2. Move StdDriver to device.
3. Move TOOLCHAIN_* to device.
4. Move cmsis*, startup_M451Series.c, and system_M451Series.c/h to device.

With CMSIS 5, the NVIC functions are virtualizable. Rename the EFM32
NVIC functions to support being virtualized.

To allow enabling of uVisor on EFM32, the ROM table must be accessed
through the CMSIS-provided SECURE_ACCESS macro.

- Remove waiting for 'BTF' flag in 'i2c_stop()':
  When 'i2c_stop()' is called from 'i2c_read()' or 'i2c_write()' flag 'BTF'
  has already been cleared (indirectly) by the calling functions and therefore
  'i2c_stop()' would mistakenly always run into a timeout.
- Delay clock enabling until pins are configured:
  Enabling the I2C bus clock before configuring its pins might in rare
  cases lead to HW faults on the bus.
- Move initialization of 'handle->Instance' to function 'i2c_reset()':
  As 'i2c_reset()' uses '__HAL_I2C_GET_FLAG(handle, I2C_FLAG_BUSY)' field
  'handle->Instance' must have been initialized before doing so. Therefore,
  this operation has been anticipated by moving it from function
  'i2c_frequency()' to function 'i2c_reset()'.

--profile can be used with just a profile name eg. default, debug as
long as <name>.json file is in default profile directory.

This reverts commit 8f9f4ee since
it broke memory map info for IAR, ARMCC and on windows, GCC_ARM.

Signed-off-by: Mahadevan Mahesh <Mahesh.Mahadevan@nxp.com>

Signed-off-by: Mahadevan Mahesh <Mahesh.Mahadevan@nxp.com>

the SPI_ASYNCH feature has been already activated for STM32F4.
This patchset makes it supported on all STM32 families by:
- moving spi_s structure at family level instead of board level
- using the F4 spi_api.c reference implementation and making it a common
stm_spi_api.c file which makes maintenance a lot easier.
- the only part that needs to be implemented for each family is the computation
of the clock frequency input to the spi peripheral which is not the same
accross families. So this is what remains in the spi_api.c of each family.

Because of the introduction of the common file, all the above modifications
needs to be done at once.

ASYNCH SPI transfer support has been added based on STM HAL services.
To have both ASYNCH and SYNCH work together, we're also moving the
write API to STM HAL instead of direct registers access.

Now that SPI_ASYNCH is supported on all STM32 based boards,
let's activate the feature.

Using a default SPI QUEUE of size 2 - this can be later modified if this
prives to be to low. (or too high)

Let's swap default PA_4 pin mapping to SPI_3 otherwise SPI3 cannot be used

Fix indentation issues, remove useless comments, correct if/else format

STM32F303ZE was introduced in parallel to the changes which consist in
having family wide definitions like device.h file and a common objects
definition.

This target is updated accordingly now to benefit of SPI definitions.

Don't ask multiple DNS servers in case of successful connection, even if
the response is negative. Make sure the return value is correct.

Use newlib nano for targets which have the key "default_lib" set to
"small". Also support the legacy key of "default_build".

DEVICE_ are passed as command line -D, thus no inclusion is required.
``platform.h`` is C++ header file, should not be pulled in C files

Related to commit abba0c2

Currently only one network interface can be compiled in at a given time,
to avoid failing automated test on this target WiFi will be disabled by default.

Squash all the changes in the PR 2865 -
"TARGET_NRF5: A few corrections in HAL implementation."

This PR causes problems with the release script so a squashed version
without merges is needed.

Manually bring PR 2865 into the release