ARM: dts: Put Arndale fixed voltage regulators on a simple-bus

Fixed voltage regulators (and other similar free standing things) are
supposed to go on a simple-bus for DT correctness reasons.
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos5250-arndale.dts

@@ -432,18 +432,24 @@ hdmi {
 		vdd-supply = <&ldo8_reg>;
 	};
 
-	mmc_reg: voltage-regulator {
-		compatible = "regulator-fixed";
-		regulator-name = "VDD_33ON_2.8V";
-		regulator-min-microvolt = <2800000>;
-		regulator-max-microvolt = <2800000>;
-		gpio = <&gpx1 1 1>;
-		enable-active-high;
-	};
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		mmc_reg: voltage-regulator {
+			compatible = "regulator-fixed";
+			regulator-name = "VDD_33ON_2.8V";
+			regulator-min-microvolt = <2800000>;
+			regulator-max-microvolt = <2800000>;
+			gpio = <&gpx1 1 1>;
+			enable-active-high;
+		};
 
-	reg_hdmi_en: fixedregulator@0 {
-		compatible = "regulator-fixed";
-		regulator-name = "hdmi-en";
+		reg_hdmi_en: fixedregulator@0 {
+			compatible = "regulator-fixed";
+			regulator-name = "hdmi-en";
+		};
 	};
 
 	fixed-rate-clocks {