ARM: at91: sam9x5ek add udc DT support

Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Tested-by: NBo Shen <voice.shen@atmel.com>

arch/arm/boot/dts/at91sam9x5ek.dtsi

@@ -52,6 +52,11 @@
 				status = "okay";
 			};
 
+			usb2: gadget@f803c000 {
+				atmel,vbus-gpio = <&pioB 16 GPIO_ACTIVE_HIGH>;
+				status = "okay";
+			};
+
 			i2c0: i2c@f8010000 {
 				status = "okay";
 			};