* AMS TAOS TSL2563 ambient light sensor

Required properties:

  - compatible : should be "amstaos,tsl2563"
  - reg : the I2C address of the sensor

Optional properties:

  - amstaos,cover-comp-gain : integer used as multiplier for gain
                              compensation (default = 1)

Example:

tsl2563@29 {
	compatible = "amstaos,tsl2563";
	reg = <0x29>;
	amstaos,cover-comp-gain = <16>;
};