[4163](https://github.com/ARMmbed/mbed-os/pull/4163)
STM32L486RG/mbedtls: add aes hw acceleration
[4659](https://github.com/ARMmbed/mbed-os/pull/4659)
Add the correct startup s file in TARGET_STM32F767
[4548](https://github.com/ARMmbed/mbed-os/pull/4548)
Resolve Warnings for mbed-os-examples
[4720](https://github.com/ARMmbed/mbed-os/pull/4720)
FlashIAP: Add explicit read function to flash_api.h
[4525](https://github.com/ARMmbed/mbed-os/pull/4525)
Improve the startup code on the STM32F070
[4674](https://github.com/ARMmbed/mbed-os/pull/4674)
Fix LED4 for UBLOX_EVK_NINA_B1
[4747](https://github.com/ARMmbed/mbed-os/pull/4747)
Remove unused header files includes for REALTEK_RTL8195AM
[4736](https://github.com/ARMmbed/mbed-os/pull/4736)
NRF52832: Extend idle thread stack size to 512 bytes.
[4707](https://github.com/ARMmbed/mbed-os/pull/4707)
STM32: serial: use proper macro to check interrupt
[4699](https://github.com/ARMmbed/mbed-os/pull/4699)
STM32L0 : internal ADC channels
[4694](https://github.com/ARMmbed/mbed-os/pull/4694)
DISCO_L475VG_IOT01A: typo corrections in PeripheralPins.c
[4693](https://github.com/ARMmbed/mbed-os/pull/4693)
Nordic: Fix multiple defined symbol.
[4691](https://github.com/ARMmbed/mbed-os/pull/4691)
STM32: F4: Increase ADC sampling time for VBAT
[4668](https://github.com/ARMmbed/mbed-os/pull/4668)
DISCO/NUCLEO_F429ZI: Enable all alternate functions and pins
[4667](https://github.com/ARMmbed/mbed-os/pull/4667)
Update and mute debug messages of REALTEK_TRL8195AM
[4634](https://github.com/ARMmbed/mbed-os/pull/4634)
Fix the issue #4357: NRF52 doesn't support simultaneous use of I2C and SPI.