ARM: sun4i: dt: Remove grouping + simple-bus compatible for regulators

According to Documentation/devicetree/bindings/regulator/regulator.txt
regulator nodes should not be placed under 'simple-bus'.

Mark Rutland also explains about it at:
http://www.spinics.net/lists/linux-usb/msg101497.htmlSigned-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun4i-a10-a1000.dts

@@ -80,9 +80,6 @@
 		};
 	};
 
-	regulators {
-		compatible = "simple-bus";
-
 	reg_emac_3v3: emac-3v3 {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -93,5 +90,4 @@
 		enable-active-high;
 		gpio = <&pio 7 15 0>;
 	};
-	};
 };

arch/arm/boot/dts/sun4i-a10-hackberry.dts

@@ -54,9 +54,6 @@
 		};
 	};
 
-	regulators {
-		compatible = "simple-bus";
-
 	reg_emac_3v3: emac-3v3 {
 		compatible = "regulator-fixed";
 		regulator-name = "emac-3v3";
@@ -65,5 +62,4 @@
 		enable-active-high;
 		gpio = <&pio 7 19 0>;
 	};
-	};
 };