Engicam Is.IoT has eMMC and NAND cpu modules where MMC
is common for both, so remove explicit mmc defconfig.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Add new board names for existing board support
imx6q - icore and icore_rqs boards
imx6ul - geam6ul and isiot boards
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>