ralink: the mt7620 evb has a usb port

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 42293

target/linux/ramips/dts/MT7620a.dts

@@ -116,4 +116,12 @@
 			linux,code = <0x101>;
 		};
 	};
+
+	ehci@101c0000 {
+		status = "okay";
+	};
+
+	ohci@101c1000 {
+		status = "okay";
+	};
 };