arm64: dts: qcom: pm8550: add flash LED controller

Add node for PM8550 PMIC flash LED controller.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230516150202.188655-2-krzysztof.kozlowski@linaro.org

arch/arm64/boot/dts/qcom/pm8550.dtsi

@@ -55,5 +55,11 @@ pm8550_gpios: gpio@8800 {
 			interrupt-controller;
 			#interrupt-cells = <2>;
 		};
+
+		pm8550_flash: led-controller@ee00 {
+			compatible = "qcom,pm8550-flash-led", "qcom,spmi-flash-led";
+			reg = <0xee00>;
+			status = "disabled";
+		};
 	};
 };