Chipone ICN6211 MIPI-DSI to RGB bridge bindings

Required properties:
- compatible: "chipone,icn6211"
- reg: I2C slave address
- clocks: phandle to reference clock for RGB output clock.
- clock-names: name should be "refclk"

Optional properties:
- enable-gpios: a GPIO spec for the en pin
- vdd1-supply: phandle to vdd1 regulator device node
- vdd2-supply: phandle to vdd2 regulator device node
- vdd3-supply: phandle to vdd3 regulator device node

Example:

&i2c0 {
	status = "okay";

	icn6211@2c {
		compatible = "chipone,icn6211";
		reg = <0x2c>;
		clocks = <&osc26m>;
		clock-names = "refclk";
		enable-gpios = <&gpio3 RK_PB1 GPIO_ACTIVE_HIGH>;

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;

				icn6211_in_dsi: endpoint {
					remote-endpoint = <&dsi_out_icn6211>;
				};
			};

			port@1 {
				reg = <1>;

				icn6211_out_panel: endpoint {
					remote-endpoint = <&panel_in_icn6211>;
				};
			};
		};

	};
};