ARM: dts: imx6dl-udoo: Add board support based off imx6q-udoo

For more information about the Udoo boards:
http://www.udoo.org/



Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>