arm/dt: msm8974: Enable LED flash on 8974 MTP

Enable LED flash on 8974 MTP back camera by adding the property to
pick led flash phandle

Change-Id: I01dedc2ca4f8f81c873efc0e2a6b465790a35344
Signed-off-by: Sreesudhan Ramakrish Ramkumar <srramku@codeaurora.org>
diff --git a/arch/arm/boot/dts/msm8974-camera-sensor-cdp-mtp.dtsi b/arch/arm/boot/dts/msm8974-camera-sensor-cdp-mtp.dtsi
index 15a549c..fd7ac49 100644
--- a/arch/arm/boot/dts/msm8974-camera-sensor-cdp-mtp.dtsi
+++ b/arch/arm/boot/dts/msm8974-camera-sensor-cdp-mtp.dtsi
@@ -27,6 +27,7 @@
 		qcom,csiphy-sd-index = <0>;
 		qcom,csid-sd-index = <0>;
 		qcom,actuator-src = <&actuator0>;
+		qcom,led-flash-src = <&led_flash0>;
 		qcom,mount-angle = <90>;
 		qcom,sensor-name = "s5k3l1yx";
 		cam_vdig-supply = <&pm8941_l3>;