ARM: dts: imx6q-sabrelite: add usbmisc device

- add usbmisc device
- set property fsl,usbmisc for usb controllers
- set disable-over-current for imx6q-sabrelite usb otg

Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx6q-sabrelite.dts

@@ -68,6 +68,7 @@
 		aips-bus@02100000 { /* AIPS2 */
 			usb@02184000 { /* USB OTG */
 				vbus-supply = <&reg_usb_otg_vbus>;
+				disable-over-current;
 				status = "okay";
 			};
 

arch/arm/boot/dts/imx6q.dtsi

@@ -777,6 +777,7 @@
 				interrupts = <0 43 0x04>;
 				clocks = <&clks 162>;
 				fsl,usbphy = <&usbphy1>;
+				fsl,usbmisc = <&usbmisc 0>;
 				status = "disabled";
 			};
 
@@ -786,6 +787,7 @@
 				interrupts = <0 40 0x04>;
 				clocks = <&clks 162>;
 				fsl,usbphy = <&usbphy2>;
+				fsl,usbmisc = <&usbmisc 1>;
 				status = "disabled";
 			};
 
@@ -794,6 +796,7 @@
 				reg = <0x02184400 0x200>;
 				interrupts = <0 41 0x04>;
 				clocks = <&clks 162>;
+				fsl,usbmisc = <&usbmisc 2>;
 				status = "disabled";
 			};
 
@@ -802,9 +805,17 @@
 				reg = <0x02184600 0x200>;
 				interrupts = <0 42 0x04>;
 				clocks = <&clks 162>;
+				fsl,usbmisc = <&usbmisc 3>;
 				status = "disabled";
 			};
 
+			usbmisc: usbmisc@02184800 {
+				#index-cells = <1>;
+				compatible = "fsl,imx6q-usbmisc";
+				reg = <0x02184800 0x200>;
+				clocks = <&clks 162>;
+			};
+
 			ethernet@02188000 {
 				compatible = "fsl,imx6q-fec";
 				reg = <0x02188000 0x4000>;