Brutally added patch command after download.
> I'm not a buildroot expert but the best way seemed to move the
> upstream btuart download in a PRE_PATCH_HOOK so that standard
> buildroot way of patching can be applied.
I've been finally able to test it and the PRE_PATCH_HOOK does not work
seems it's never triggered.
I tried also th POST_RSYNC_HOOK that works but still patch is not
applied.
I think that patch is not detected (odd, patch naming seems complient)
or since source code is not downloaded buildroot thinks that patch is
not needed, couldn't sort it out.
d4a403b640