ARM: dts: iwg20d-q7: Enable internal PCI

Enable internal AHB-PCI bridges for the USB EHCI/OHCI controllers
attached to them.
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

@@ -76,6 +76,16 @@ sdhi1_pins_uhs: sd1_uhs {
 		function = "sdhi1";
 		power-source = <1800>;
 	};
+
+	usb0_pins: usb0 {
+		groups = "usb0";
+		function = "usb0";
+	};
+
+	usb1_pins: usb1 {
+		groups = "usb1";
+		function = "usb1";
+	};
 };
 
 &scif0 {
@@ -125,3 +135,15 @@ rtc@68 {
 		reg = <0x68>;
 	};
 };
+
+&pci0 {
+	status = "okay";
+	pinctrl-0 = <&usb0_pins>;
+	pinctrl-names = "default";
+};
+
+&pci1 {
+	status = "okay";
+	pinctrl-0 = <&usb1_pins>;
+	pinctrl-names = "default";
+};