Enable USB PHY device for the SILK board.

Signed-off-by: Sergei Shtylyov <redacted>

---
 arch/arm/boot/dts/r8a7794-silk.dts |    4 ++++
 1 file changed, 4 insertions(+)

Index: renesas/arch/arm/boot/dts/r8a7794-silk.dts
===================================================================

--- renesas.orig/arch/arm/boot/dts/r8a7794-silk.dts
+++ renesas/arch/arm/boot/dts/r8a7794-silk.dts

@@ -210,3 +210,7 @@
 	pinctrl-0 = <&usb1_pins>;
 	pinctrl-names = "default";
 };
+
+&usbphy {
+	status = "okay";
+};