Merge "Documentation: i2c: document dt for sii8620 driver"

* Silicon Image-8620 MHL Tx

Required properties:

- compatible: must be "simg,sii-8620"

- reg: i2c slave address

- simg,reset-gpio: MHL reset gpio going into sii8620 for toggling reset pin

- simg,irq-gpio: MHL interrupt gpio coming out of sii8620

- simg,i2c_port#: Port number of i2c device

Example:

	i2c@f9923000 {

		simg,sii-8620@72 {

			compatible = "simg,sii-8620";

			reg = <0x72>;

			simg,reset-gpio = <&msm_gpio 58 0>;

			simg,irq-gpio = <&msm_gpio 57 0>;

			simg,i2c_port# = <1>;

		};

	};