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* Amlogic G12A USB2 PHY binding

Required properties:
- compatible:	Should be "amlogic,meson-g12a-usb2-phy"
- reg:		The base address and length of the registers
- #phys-cells:	must be 0 (see phy-bindings.txt in this directory)
- clocks:	a phandle to the clock of this PHY
- clock-names:	must be "xtal"
- resets:	a phandle to the reset line of this PHY
- reset-names:	must be "phy"
- phy-supply:	see phy-bindings.txt in this directory

Example:
	usb2_phy0: phy@36000 {
		compatible = "amlogic,g12a-usb2-phy";
		reg = <0x0 0x36000 0x0 0x2000>;
		clocks = <&xtal>;
		clock-names = "xtal";
		resets = <&reset RESET_USB_PHY21>;
		reset-names = "phy";
		#phy-cells = <0>;
	};