arm64: dts: imx8mm-kontron: Use voltage rail names from schematic for PMIC regulator-names

Improve the naming of the regulators to contain the voltage rail
names from the schematic.
Suggested-by: Heiko Thiery <heiko.thiery@gmail.com>
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi

@@ -85,7 +85,7 @@ pca9450: pmic@25 {
 
 		regulators {
 			reg_vdd_soc: BUCK1 {
-				regulator-name = "buck1";
+				regulator-name = "+0V8_VDD_SOC (BUCK1)";
 				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <850000>;
 				regulator-boot-on;
@@ -96,7 +96,7 @@ reg_vdd_soc: BUCK1 {
 			};
 
 			reg_vdd_arm: BUCK2 {
-				regulator-name = "buck2";
+				regulator-name = "+0V9_VDD_ARM (BUCK2)";
 				regulator-min-microvolt = <850000>;
 				regulator-max-microvolt = <950000>;
 				regulator-boot-on;
@@ -107,7 +107,7 @@ reg_vdd_arm: BUCK2 {
 			};
 
 			reg_vdd_dram: BUCK3 {
-				regulator-name = "buck3";
+				regulator-name = "+0V9_VDD_DRAM&PU (BUCK3)";
 				regulator-min-microvolt = <850000>;
 				regulator-max-microvolt = <950000>;
 				regulator-boot-on;
@@ -115,7 +115,7 @@ reg_vdd_dram: BUCK3 {
 			};
 
 			reg_vdd_3v3: BUCK4 {
-				regulator-name = "buck4";
+				regulator-name = "+3V3 (BUCK4)";
 				regulator-min-microvolt = <3300000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
@@ -123,7 +123,7 @@ reg_vdd_3v3: BUCK4 {
 			};
 
 			reg_vdd_1v8: BUCK5 {
-				regulator-name = "buck5";
+				regulator-name = "+1V8 (BUCK5)";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
 				regulator-boot-on;
@@ -131,7 +131,7 @@ reg_vdd_1v8: BUCK5 {
 			};
 
 			reg_nvcc_dram: BUCK6 {
-				regulator-name = "buck6";
+				regulator-name = "+1V1_NVCC_DRAM (BUCK6)";
 				regulator-min-microvolt = <1100000>;
 				regulator-max-microvolt = <1100000>;
 				regulator-boot-on;
@@ -139,7 +139,7 @@ reg_nvcc_dram: BUCK6 {
 			};
 
 			reg_nvcc_snvs: LDO1 {
-				regulator-name = "ldo1";
+				regulator-name = "+1V8_NVCC_SNVS (LDO1)";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
 				regulator-boot-on;
@@ -147,7 +147,7 @@ reg_nvcc_snvs: LDO1 {
 			};
 
 			reg_vdd_snvs: LDO2 {
-				regulator-name = "ldo2";
+				regulator-name = "+0V8_VDD_SNVS (LDO2)";
 				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <900000>;
 				regulator-boot-on;
@@ -155,7 +155,7 @@ reg_vdd_snvs: LDO2 {
 			};
 
 			reg_vdda: LDO3 {
-				regulator-name = "ldo3";
+				regulator-name = "+1V8_VDDA (LDO3)";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
 				regulator-boot-on;
@@ -163,7 +163,7 @@ reg_vdda: LDO3 {
 			};
 
 			reg_vdd_phy: LDO4 {
-				regulator-name = "ldo4";
+				regulator-name = "+0V9_VDD_PHY (LDO4)";
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <900000>;
 				regulator-boot-on;
@@ -171,7 +171,7 @@ reg_vdd_phy: LDO4 {
 			};
 
 			reg_nvcc_sd: LDO5 {
-				regulator-name = "ldo5";
+				regulator-name = "NVCC_SD (LDO5)";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3300000>;
 			};