[PATCH] add STM32H7 BSP variant to support STM32H7B3I-DK board

[Karel Gardas]

On 4/1/22 18:45, Joel Sherrill wrote:
>     The issues on Github with respect to the STMicroelectronics licensing
>     ended up on a TODO list.
> 
> 
> Is this in reference to their Ultimate Liberty License? Is the TODO item
> to get clarification from them? Hopefully change it?

No, this is a reference to Sebastian's submitted issues on 
STMicroelectronics github projects we're using as a STM32 HAL:

https://github.com/STMicroelectronics/STM32CubeH7/issues/205
https://github.com/STMicroelectronics/stm32h7xx_hal_driver/issues/21

Karel