ARM: dts: socfpga: cyclone5: align regulator node with dtschema

Fixes dtbs_check warnings like:

'3-3-v-regulator' does not match any of the regexes: '.*-names$'

Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>:wq
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>

arch/arm/boot/dts/socfpga_cyclone5_chameleon96.dts

@@ -24,7 +24,7 @@
 		reg = <0x0 0x20000000>; /* 512MB */
 	};
 
-	regulator_3_3v: 3-3-v-regulator {
+	regulator_3_3v: regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "3.3V";
 		regulator-min-microvolt = <3300000>;

arch/arm/boot/dts/socfpga_cyclone5_de0_nano_soc.dts

@@ -24,7 +24,7 @@
 		ethernet0 = &gmac1;
 	};
 
-	regulator_3_3v: 3-3-v-regulator {
+	regulator_3_3v: regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "3.3V";
 		regulator-min-microvolt = <3300000>;

arch/arm/boot/dts/socfpga_cyclone5_socdk.dts

@@ -50,7 +50,7 @@
 		};
 	};
 
-	regulator_3_3v: 3-3-v-regulator {
+	regulator_3_3v: regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "3.3V";
 		regulator-min-microvolt = <3300000>;

arch/arm/boot/dts/socfpga_cyclone5_sockit.dts

@@ -111,7 +111,7 @@
 		};
 	};
 
-	regulator_3_3v: vcc3p3-regulator {
+	regulator_3_3v: regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "VCC3P3";
 		regulator-min-microvolt = <3300000>;

arch/arm/boot/dts/socfpga_cyclone5_sodia.dts

@@ -26,7 +26,7 @@
 		ethernet0 = &gmac1;
 	};
 
-	regulator_3_3v: 3-3-v-regulator {
+	regulator_3_3v: regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "3.3V";
 		regulator-min-microvolt = <3300000>;