arm64: dts: qcom: msm8916-longcheer-l8910: Add front flash LED

l8910 uses OCP8110 flash LED driver. Add it to the device tree.
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230514-x5_front_flash-v2-1-845a8bb0483b@apitzsch.eu

arch/arm64/boot/dts/qcom/msm8916-longcheer-l8910.dts

@@ -20,6 +20,21 @@ chosen {
 		stdout-path = "serial0";
 	};
 
+	flash-led-controller {
+		compatible = "ocs,ocp8110";
+		enable-gpios = <&msmgpio 49 GPIO_ACTIVE_HIGH>;
+		flash-gpios = <&msmgpio 119 GPIO_ACTIVE_HIGH>;
+
+		pinctrl-0 = <&camera_front_flash_default>;
+		pinctrl-names = "default";
+
+		flash_led: led {
+			function = LED_FUNCTION_FLASH;
+			color = <LED_COLOR_ID_WHITE>;
+			flash-max-timeout-us = <250000>;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 
@@ -246,6 +261,13 @@ button_backlight_default: button-backlight-default-state {
 		bias-disable;
 	};
 
+	camera_front_flash_default: camera-front-flash-default-state {
+		pins = "gpio49", "gpio119";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	gpio_keys_default: gpio-keys-default-state {
 		pins = "gpio107";
 		function = "gpio";