ARM: imx6q_logic: Enable UUID support

With UUID support, the root can now point to UUID.  This makes
swiching between mmc 0 and mmc 1 easier by simplying changing
mmcdev between 0 and 1.  From there, the scripts handle the rest.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/configs/imx6q_logic_defconfig b/configs/imx6q_logic_defconfig
index 8a875a8..385efce 100644
--- a/configs/imx6q_logic_defconfig
+++ b/configs/imx6q_logic_defconfig
@@ -46,6 +46,7 @@
 CONFIG_CMD_USB_MASS_STORAGE=y
 CONFIG_CMD_CACHE=y
 # CONFIG_CMD_LED is not set
+CONFIG_CMD_UUID=y
 CONFIG_CMD_PMIC=y
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_MTDPARTS=y