configs: remove obsolete CONFIG_MVEBU_MMC

All usages of this have been removed

Signed-off-by: Harm Berntsen <harm.berntsen@nedap.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
CC: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
1 file changed