* Atheros AR71XX/9XXX USB PHY

Required properties:
- compatible: "qca,ar7100-usb-phy"
- #phys-cells: should be 0
- reset-names: "usb-phy"[, "usb-suspend-override"]
- resets: references to the reset controllers

Example:

	usb-phy {
		compatible = "qca,ar7100-usb-phy";

		reset-names = "usb-phy", "usb-suspend-override";
		resets = <&rst 4>, <&rst 3>;

		#phy-cells = <0>;
	};
