ARM: dts: da850/dm81x: remove unneeded unit name for fixed regulators

This patch fixes the following DTC warnings for many boards:

"Node /fixedregulator@0 has a unit name, but no reg property"
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/da850-evm.dts

@@ -136,7 +136,7 @@ nand_cs3@62000000 {
 		pinctrl-names = "default";
 		pinctrl-0 = <&nand_cs3_pins>;
 	};
-	vbat: fixedregulator@0 {
+	vbat: fixedregulator0 {
 		compatible = "regulator-fixed";
 		regulator-name = "vbat";
 		regulator-min-microvolt = <5000000>;

arch/arm/boot/dts/dm8148-evm.dts

@@ -18,7 +18,7 @@ memory {
 	};
 
 	/* MIC94060YC6 controlled by SD1_POW pin */
-	vmmcsd_fixed: fixedregulator@0 {
+	vmmcsd_fixed: fixedregulator0 {
 		compatible = "regulator-fixed";
 		regulator-name = "vmmcsd_fixed";
 		regulator-min-microvolt = <3300000>;

arch/arm/boot/dts/dm8148-t410.dts

@@ -27,7 +27,7 @@ usb_power: regulator@9 {
 		regulator-always-on;
 	};
 
-	vmmcsd_fixed: fixedregulator@0 {
+	vmmcsd_fixed: fixedregulator0 {
 		compatible = "regulator-fixed";
 		regulator-name = "vmmcsd_fixed";
 		regulator-min-microvolt = <3300000>;

arch/arm/boot/dts/dm8168-evm.dts

@@ -19,7 +19,7 @@ memory {
 	};
 
 	/* FDC6331L controlled by SD_POW pin */
-	vmmcsd_fixed: fixedregulator@0 {
+	vmmcsd_fixed: fixedregulator0 {
 		compatible = "regulator-fixed";
 		regulator-name = "vmmcsd_fixed";
 		regulator-min-microvolt = <3300000>;