arm64: dts: qcom: sdm845-xiaomi-beryllium: add notification LED

The Poco F1 has a single color white notification LED. Enable the
Qualcomm Light Pulse Generator (LPG) driver based notification LED.
Signed-off-by: Joel Selvaraj <joelselvaraj.oss@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230313154226.136726-1-joelselvaraj.oss@gmail.com

arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi

@@ -2,6 +2,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/leds/common.h>
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
 #include <dt-bindings/sound/qcom,q6afe.h>
@@ -319,6 +320,16 @@ vol_up_pin_a: vol-up-active-state {
 	};
 };
 
+&pmi8998_lpg {
+	status = "okay";
+
+	led@5 {
+		reg = <5>;
+		color = <LED_COLOR_ID_WHITE>;
+		function = LED_FUNCTION_STATUS;
+	};
+};
+
 &pmi8998_wled {
 	status = "okay";
 	qcom,current-boost-limit = <970>;