Enable the micro-sd slot on the A80 Optimus Board, which is connected to
mmc0. This adds the card-detect gpio and enables mmc0.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>