ARM: at91: dt: enable usb ehci for sam9g45 and sam9x5

make the ECHI depends on ARCH_AT91

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: devicetree-discuss@lists.ozlabs.org
diff --git a/arch/arm/boot/dts/at91sam9g25ek.dts b/arch/arm/boot/dts/at91sam9g25ek.dts
index 93d5e36..ac0dc00 100644
--- a/arch/arm/boot/dts/at91sam9g25ek.dts
+++ b/arch/arm/boot/dts/at91sam9g25ek.dts
@@ -41,5 +41,9 @@
 					   &pioD 20 0
 					  >;
 		};
+
+		usb1: ehci@00700000 {
+			status = "okay";
+		};
 	};
 };