arm64: dts: imx8mn-evk: use proper names for PMIC outputs

Use the power signal names as given in the schematics of the reference
board.
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Heiko Thiery <heiko.thiery@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mn-evk.dts

@@ -41,7 +41,7 @@ pmic: pmic@25 {
 
 		regulators {
 			buck1: BUCK1{
-				regulator-name = "BUCK1";
+				regulator-name = "VDD_SOC";
 				regulator-min-microvolt = <600000>;
 				regulator-max-microvolt = <2187500>;
 				regulator-boot-on;
@@ -50,7 +50,7 @@ buck1: BUCK1{
 			};
 
 			buck2: BUCK2 {
-				regulator-name = "BUCK2";
+				regulator-name = "VDD_ARM_0V9";
 				regulator-min-microvolt = <600000>;
 				regulator-max-microvolt = <2187500>;
 				regulator-boot-on;
@@ -61,7 +61,7 @@ buck2: BUCK2 {
 			};
 
 			buck4: BUCK4{
-				regulator-name = "BUCK4";
+				regulator-name = "VDD_3V3";
 				regulator-min-microvolt = <600000>;
 				regulator-max-microvolt = <3400000>;
 				regulator-boot-on;
@@ -69,7 +69,7 @@ buck4: BUCK4{
 			};
 
 			buck5: BUCK5{
-				regulator-name = "BUCK5";
+				regulator-name = "VDD_1V8";
 				regulator-min-microvolt = <600000>;
 				regulator-max-microvolt = <3400000>;
 				regulator-boot-on;
@@ -77,7 +77,7 @@ buck5: BUCK5{
 			};
 
 			buck6: BUCK6 {
-				regulator-name = "BUCK6";
+				regulator-name = "NVCC_DRAM_1V1";
 				regulator-min-microvolt = <600000>;
 				regulator-max-microvolt = <3400000>;
 				regulator-boot-on;
@@ -85,7 +85,7 @@ buck6: BUCK6 {
 			};
 
 			ldo1: LDO1 {
-				regulator-name = "LDO1";
+				regulator-name = "NVCC_SNVS_1V8";
 				regulator-min-microvolt = <1600000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
@@ -93,7 +93,7 @@ ldo1: LDO1 {
 			};
 
 			ldo2: LDO2 {
-				regulator-name = "LDO2";
+				regulator-name = "VDD_SNVS_0V8";
 				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <1150000>;
 				regulator-boot-on;
@@ -101,7 +101,7 @@ ldo2: LDO2 {
 			};
 
 			ldo3: LDO3 {
-				regulator-name = "LDO3";
+				regulator-name = "VDDA_1V8";
 				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
@@ -109,7 +109,7 @@ ldo3: LDO3 {
 			};
 
 			ldo4: LDO4 {
-				regulator-name = "LDO4";
+				regulator-name = "VDD_PHY_1V2";
 				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
@@ -117,7 +117,7 @@ ldo4: LDO4 {
 			};
 
 			ldo5: LDO5 {
-				regulator-name = "LDO5";
+				regulator-name = "NVCC_SD2";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;