NVIDIA Camera sensor imx135 driver interface.

Required properties:
- compatible : The driver is compatible with
	"nvidia,imx135".

- cam1_gpios : Camera GPIO.

- reset_gpios : Reset GPIO.

- af_gpios : AF1 GPIO.

- reg: Should contain I2C slave address of the driver.

- nvidia,ext_reg : For few platforms this driver needs extra power regulators
to be enabled. This bool property indicates the same. It must be programmed
only when imx135 driver needs extra power rails for particular platform.

Example:

	imx135@10 {
		compatible = "nvidia,imx135";
		cam1-gpios = <&gpio 221 0>; /* gpio PBB5 */
		reset-gpios = <&gpio 219 0>; /* gpio PBB3 */
		af-gpios = <&gpio 225 0>; /* gpio PCC1 */
		nvidia,ext_reg; /* Extra power-regulators needed */
		reg = <0x10>;
		status = "okay";
	};
