arm: mvebu: clearfog: Fix MMC detection

A388 Clearfog MMC is either SD Card or eMMC with different behaviour for
both. Setting the device to non-removable in the u-boot.dtsi allows both
to correctly detect the device.

Signed-off-by: Martin Rowe <martin.p.rowe@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
1 file changed