[U-Boot] [PATCH] board: Remove unnecessary inclusion of micrel.h from boards

[Eugen.Hristev at microchip.com]

On 15.11.2019 19:11, James Byrne wrote:

> Several boards still unnecessarily included micrel.h but no longer
> require it since the switch to Device Tree configuration.
> 
> Signed-off-by: James Byrne <james.byrne at origamienergy.com>
> 

Applied to u-boot-atmel/master

Thanks!