TI CPSW Phy mode Selection Device Tree Bindings
-----------------------------------------------

Required properties:
- compatible		: Should be "ti,am3352-cpsw-phy-sel" for am335x platform and
			  "ti,dra7xx-cpsw-phy-sel" for dra7xx platform
			  "ti,am43xx-cpsw-phy-sel" for am43xx platform
- reg			: physical base address and size of the cpsw
			  registers map
- reg-names		: names of the register map given in "reg" node

Optional properties:
-rmii-clock-ext		: If present, the driver will configure the RMII
			  interface to external clock usage

Examples:

	phy_sel: cpsw-phy-sel@44e10650 {
		compatible = "ti,am3352-cpsw-phy-sel";
		reg= <0x44e10650 0x4>;
		reg-names = "gmii-sel";
	};

(or)
	phy_sel: cpsw-phy-sel@44e10650 {
		compatible = "ti,am3352-cpsw-phy-sel";
		reg= <0x44e10650 0x4>;
		reg-names = "gmii-sel";
		rmii-clock-ext;
	};