ARM: dts: Add ddc i2c reference to veyron

The ddc-i2c-bus property was missing from the veyron dtsi file since
downstream the ddc-i2c-bus was still being specified in rk3288.dtsi and
nobody noticed when the veyron dtsi was sent upstream.  Add it.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rk3288-veyron.dtsi

@@ -158,6 +158,7 @@ &emmc {
 };
 
 &hdmi {
+	ddc-i2c-bus = <&i2c5>;
 	status = "okay";
 };