uboot-imx

MMC: davinici_mmc: Enable CD and WP with DM and OF_CONTROL

When used with a device tree, this will extract the card detect
and write protect pins from the device tree and configure them
accordingly.  This assumes the GPIO_ACTIVE_LOW/HIGH is supported
by da8xx_gpio.

Signed-off-by: Adam Ford <aford173@gmail.com>