Add board support for 96Boards Avenger96 board from Arrow Electronics
based on STM32MP157A MPU from ST Microelectronics. This board is one
of the consumer editions boards of the 96Boards family following the
Extented CE form factor. More information about this board can be found
in 96Boards website: https://www.96boards.org/product/avenger96/
By default Zephyr console output is available via RAM console, but it
can also be changed to UART7 exposed as UART0 on 40 pin LS header.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Manivannan Sadhasivam