CI (CAM) Bridge Over SPI

Required properties:

- compatible: "smartv,cimax"
- reg: SPI chip-select
- spi-max-frequency: Max allowed frequency of SPI interface
- smartv,cimax-int-gpio: CIMax interrupt gpio pin
- smartv,cimax-rst-gpio: CIMax reset gpio pin

Example:

	spi@f9923000 {
	   ci-bridge-spi@0 {
			compatible = "smartv,cimax";
			reg = <0>;
			spi-max-frequency = <15000000>;
			smartv,cimax-int-gpio = <&msmgpio 133 0>;
			smartv,cimax-rst-gpio = <&ioexp_gpios 5 0>;
	   };
	};
