ARM: imx: udoo: Convert block devices to DM

Enable DM block, DM MMC and DM SATA support on iMX6 Udoo
convert board code to match the DM support.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>