arm64: dts: qcom: apq8016-sbc: Allow USR4 LED to notify kernel panic

Blink the LED on a kernel panic.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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

@@ -324,6 +324,7 @@ led@4 {
 				label = "apq8016-sbc:green:user4";
 				gpios = <&pm8916_gpios 2 GPIO_ACTIVE_HIGH>;
 				linux,default-trigger = "none";
+				panic-indicator;
 				default-state = "off";
 			};