ARM: dts: imx6: edmqmx6: Do not use the OTG switch as VBUS regulator

GPIO7_12 switches the D+/D- USB lines on and off. When we use this as
VBUS regulator it means that USB device mode can never work as VBUS is
never turned on in Device mode.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

arch/arm/boot/dts/imx6q-dmo-edmqmx6.dts

@@ -40,13 +40,15 @@
 			regulator-always-on;
 		};
 
-		reg_usb_otg_vbus: regulator@1 {
+		reg_usb_otg_switch: regulator@1 {
 			compatible = "regulator-fixed";
 			reg = <1>;
-			regulator-name = "usb_otg_vbus";
+			regulator-name = "usb_otg_switch";
 			regulator-min-microvolt = <5000000>;
 			regulator-max-microvolt = <5000000>;
 			gpio = <&gpio7 12 0>;
+			regulator-boot-on;
+			regulator-always-on;
 		};
 
 		reg_usb_host1: regulator@2 {
@@ -348,7 +350,6 @@
 };
 
 &usbotg {
-	vbus-supply = <&reg_usb_otg_vbus>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usbotg>;
 	disable-over-current;