mvebu: enable USB on Armada 370 Reference Design

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 35212

target/linux/mvebu/patches-3.8/043-arm_mvebu_enable_usb_a370_rd.patch

+--- a/arch/arm/boot/dts/armada-370-rd.dts
++++ b/arch/arm/boot/dts/armada-370-rd.dts
+@@ -63,5 +63,13 @@
+ 			pinctrl-names = "default";
+ 			status = "okay";
+ 		};
++
++		usb@d0050000 {
++			status = "okay";
++		};
++
++		usb@d0051000 {
++			status = "okay";
++		};
+ 	};
+ };