odroid-XU3: Add entry for DTS EHCI GPIO

Add samsung,vbus-gpio information for the XU3. This allows the usage of
the EHCI controller on the XU3, which is connected to the SMSC LAN9514
chip (usb hub + network).

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

arch/arm/dts/exynos5422-odroidxu3.dts

@@ -31,6 +31,10 @@
 			0xb0000000 0xea00000>;
 	};
 
+	ehci@12110000 {
+		samsung,vbus-gpio = <&gpio 0x66 0>; /* X26 */
+	};
+
 	serial@12C20000 {
 		status="okay";
 	};

include/configs/odroid_xu3.h

@@ -44,6 +44,10 @@
 
 #define CONFIG_DEFAULT_CONSOLE		"console=ttySAC2,115200n8\0"
 
+/* USB */
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_EXYNOS
+
 /* FIXME: MUST BE REMOVED AFTER TMU IS TURNED ON */
 #undef CONFIG_EXYNOS_TMU
 #undef CONFIG_TMU_CMD_DTT