arm64: dts: qcom: sdm850-c630: add missing panel supply

Panel bindings (boe,nv133fhm-n61) require supply which here actually can
be turned on/off via GPIO control:

  sdm850-lenovo-yoga-c630.dtb: panel: 'power-supply' is a required property
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20230617171512.286795-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts

@@ -87,6 +87,25 @@ sn65dsi86_refclk: sn65dsi86-refclk {
 		clock-frequency = <19200000>;
 	};
 
+	vph_pwr: regulator-vph-pwr {
+		compatible = "regulator-fixed";
+		regulator-name = "vph_pwr";
+		regulator-min-microvolt = <3700000>;
+		regulator-max-microvolt = <3700000>;
+	};
+
+	vlcm_3v3: regulator-vlcm-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vlcm_3v3";
+
+		vin-supply = <&vph_pwr>;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 88 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
 	backlight: backlight {
 		compatible = "pwm-backlight";
 		pwms = <&sn65dsi86 1000000>;
@@ -419,6 +438,7 @@ aux-bus {
 			panel: panel {
 				compatible = "boe,nv133fhm-n61";
 				backlight = <&backlight>;
+				power-supply = <&vlcm_3v3>;
 
 				port {
 					panel_in_edp: endpoint {