configs: Fix mmc rescan misuses

This follows 9fd383724cf4 ("mmc: don't allow extra cmdline arguments"),
and affects omapl138_lcdk and omap3_evm_quick_mmc.

Signed-off-by: Karl Beldan <kbeldan@baylibre.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
1 file changed