ARM: dts: r8a7743: Add USB PHY DT support

Define the r8a7743 generic part of the USB PHY device node.
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.dtsi

@@ -822,6 +822,28 @@ sdhi2: sd@ee160000 {
 			status = "disabled";
 		};
 
+		usbphy: usb-phy@e6590100 {
+			compatible = "renesas,usb-phy-r8a7743",
+				     "renesas,rcar-gen2-usb-phy";
+			reg = <0 0xe6590100 0 0x100>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&cpg CPG_MOD 704>;
+			clock-names = "usbhs";
+			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+			resets = <&cpg 704>;
+			status = "disabled";
+
+			usb0: usb-channel@0 {
+				reg = <0>;
+				#phy-cells = <1>;
+			};
+			usb2: usb-channel@2 {
+				reg = <2>;
+				#phy-cells = <1>;
+			};
+		};
+
 		pci0: pci@ee090000 {
 			compatible = "renesas,pci-r8a7743",
 				     "renesas,pci-rcar-gen2";