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

[Karel Gardas]

Hello Sebastian,

I've tried my best in splitting patch into smaller relevant chunks. 
Hopefully this time you will find it more appealing for merge.

Please let me know if there is still anything I shall do.

Thanks!
Karel

On 2/7/22 07:39, Sebastian Huber wrote:
> Hello Karel,
> 
[...]

> 
> Could you please split up the patch into smaller pieces which only 
> affect a specific area. This helps during a git bisect.
>