Add Wio-H725AE (#133) ...

* Add clock settings for H725xE

* Correction of memory mapping for H725xE

* Added new target WIO_H725AE

* Added WIO_H725 into targets.json

* Added upload methods file for WIO_H725

* Licence filled from original source file

* Space alignment

* Added macro MBED_SPLIT_HEAP for MCU_STM32H725xE

* Typo correction

* Correction of upload methods for WIO_H725AE

Add Blackpill-F411CE (#123) ...

* add target Blackpill-F411CE

* correction of Blackpill-F411CE

* add Blackpill to targets.json

* correction of STM32F411xE system_clock.c

* Update BLACKPILL_F411CE.cmake

Typo

* Update PinNames.h

LED correction

* Update PinNames.h

* Update BLACKPILL_F411CE.cmake

Correcting the wrong name in the Note2 about pyOCD.

* Update BLACKPILL_F411CE.cmake

Updated notes - an external debugger is required

MIMXRT1060_EVK and Teensy 4.0 support (#113) ...

* Initial attempt at Teensy 4.0 support

* Hide internal target

* Fix some targets.json issues, add boot code for the MIMXRT1060_EVK.  It boots but tests aren't able to run properly yet.

* Disable LPTICKER on MIMXRT1060, fix pin names for newer dev kits

* Enable MIMXRT106x ethernet

Add upload method support for MIMXRT1050 EVK (#84)

add HW reset to STM32CUBE as is more reliable (#85)

Add disco f769 ni uploadcfg (#82) ...

* add-uploadcfg-disco_F76ni

* add-DISCO_F769NI-uploadcfg
fix comment

* tested all upload methods except stlink (old tool)

Add nucleo f746 zg (#76) ...

* add upload for F746ZG

* fix comment

Enable Arduino Nano 33 BLE (#55) ...

* Add upload target for Arduino Nano 33 BLE, fix linker script preprocessing, add option for USB serial by default

* astyle error

* Use HINTS instead of PATHS so that the Arduino dir is searched first

* Enable OpenOCD and PyOCD for Nano 33 BLE in SWD mode

* Fix missing dependency for USB tests on Windows

* Add RAM defines for nrf52840

* Fix mbed-storage-kv-config depending on SD card library even if said library was not enabled

* Update dsrdtr value

* No longer need to modify linker script now that we aren't using whole-archive!

* Add OPENOCD_ADAPTER_SERIAL

* Add handling for cmsis dap

* Fix typo

* Fix weak symbol issue causing Bluetooth to not work.  In this case, the weak implementation can simply be removed, because there's no legitimate case where it is used.

Add Cmake config files for Disco-F746NG and Disco-F469NI into upload methods (#47)

Add Cmake config for Nucleo-L152RE and Nucleo-F303K8 into upload methods (#46)

Update NUCLEO_H743ZI2.cmake

Update NUCLEO_L432KC.cmake

Add Cmake config for Nucleo-H743ZI2 into upload methods

Add Cmake config for Nucleo-L432KC into upload methods

Update of cmake config files for ST targets - ST-link issue

Add Cmake config for Nucleo-F303RE into upload methods

Fix OpenOCD not working for L452RE, fix running tests with a non-default baudrate set, add warning about old stlink versions which may not work

Summary of changes: ...

This PR adds the cmake config for upload method of Nucleo-F446RE
All methods have been tested (only for flash), but for soem reason ST-link metho is not stable.

Update NUCLEO_F767ZI.cmake ...

J-LINK (ST-link with J-link firmware) tested successfully.

Add Cmake config for Nucleo-F767ZI into upload methods

Disable mbed semihosting interface in tests, so as not to mess up their timing

Add support for the open-source stlink uploader

Fix gdbinit and make debug-xxx not working when executables are created outside of Mbed OS. ...

Also remove "gdb_memory_map disable" command that breaks breakpoints.

Add out-of-the-box upload support for LPC1768 (OpenOCD and MBED methods only)

Add default upload method configuration for each target, make greentea tests use cmake upload methods