Synaptics TD4310 I2C touchscreen controller

Required properties:
 - compatible:     "solomon,ssd20xx"
 - gpios: 	   The reset and interrupt GPIO number
 - reg: 	   I2C slave address of the chip

Example nodes:

&i2c3 {
	/* ... */
	touchscreen@53 {
		compatible = "solomon,ssd20xx";
		reg = <0x53>;
		gpios = <&ap_gpio 145 GPIO_ACTIVE_HIGH
			&ap_gpio 144 GPIO_ACTIVE_HIGH>;
	};
	/* ... */
};
