ARM: dts: iwg20d-q7: Enable USB PHY

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7743-iwg20d-q7.dts

@@ -147,3 +147,7 @@ &pci1 {
 	pinctrl-0 = <&usb1_pins>;
 	pinctrl-names = "default";
 };
+
+&usbphy {
+	status = "okay";
+};