arm64: dts: qcom: add cec clock for apq8016 board

The adv7533 on this board needs a cec clock. Hook it up in the dtsi
to enable CEC for the HDMI transmitters.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NAndy Gross <andy.gross@linaro.org>

arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi

@@ -88,6 +88,8 @@
 				interrupts = <31 2>;
 
 				adi,dsi-lanes = <4>;
+				clocks = <&rpmcc RPM_SMD_BB_CLK2>;
+				clock-names = "cec";
 
 				pd-gpios = <&msmgpio 32 0>;