Many boards use a minimal .cfg file in the SPL case.
Introduce spl_sd.cfg so that we can reuse it.
Signed-off-by: Fabio Estevam Acked-by: Stefano Babic
CONFIG_SPL=y CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,SPL,MX6Q" +S:CONFIG_ARM=y +S:CONFIG_TARGET_MX6SABRESD=y
