arm64: dts: qcom: ipq9574: Add LDO regulator node

Add LDO regulator node
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
Link: https://lore.kernel.org/r/49b03513a012545651c7d0f149958c78de819880.1686289721.git.quic_varada@quicinc.comSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts

@@ -45,6 +45,13 @@ ipq9574_s1: s1 {
 			regulator-min-microvolt = <725000>;
 			regulator-max-microvolt = <1075000>;
 		};
+
+		mp5496_l2: l2 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-always-on;
+			regulator-boot-on;
+		};
 	};
 };