The SD card slot was enabled by default with legacy booting.
It does not work anymore with DT boot. Fix by providing GPIO configuration
that matches the old default.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com>