boards: arm: stm32wb5mm-dk: add basic board support

This patch add the basic board support for the
STM32WB5MM-DK Discovery Kit. At the moment only
debug UART Debug is ported. Other peripherals will be added
in the following patches.

Signed-off-by: Javad Rahimipetroudi <javad.rahimipetroudi@mind.be>
9 files changed