* Omnivision OV7725 MIPI CSI-2 sensor

Required Properties:
- compatible: should be "ovti,ov7725"
- clocks: reference to the 24M xvclk input clock.
- clock-names: should be "xvclk".
- dovdd-supply: Digital I/O voltage supply, 1.8 volts
- avdd-supply: Analog voltage supply, 2.8 volts
- dvdd-supply: Digital core voltage supply, 1.2 volts
- reset-gpios: Low active reset gpio

The device node must contain one 'port' child node for its digital output
video port, in accordance with the video interface bindings defined in
Documentation/devicetree/bindings/media/video-interfaces.txt.

Example:

	i2c0@1c22000 {
		...
		...
		ov7725: ov7725@21 {
			compatible = "ovti,ov7725";
			reg = <0x21>;

			clocks = <&cru SCLK_CIF_OUT>;
			clock-names = "xvclk";

			avdd-supply = <&vcc2v8_dvp>;
			dovdd-supply = <&vcc1v8_dvp>;
			dvdd-supply = <&vcc1v8_dvp>;

			pwdn-gpios = <&gpio2 14 GPIO_ACTIVE_HIGH>;

			port {
				ucam_out: endpoint {
					remote-endpoint = <&cif_in>;
				};
			};
		};
		...
	};