ARM: dts: imx6qdl-sabreauto: Add HDMI support

Add HDMI support. As the DDC I2C pins are not connected due to
pin conflicts, we do not pass the 'ddc-i2c-bus' property in
this case.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx6qdl-sabreauto.dtsi

@@ -76,6 +76,10 @@
 	status = "okay";
 };
 
+&hdmi {
+	status = "okay";
+};
+
 &i2c2 {
 	clock-frequency = <100000>;
 	pinctrl-names = "default";