raydium touch.

Required properties:
- compatible : should be "raydium,rm_ts_spidev".
- reg: Should contain registers location and length.
- interrupts: Should contain touch interrupts.
- rx-clk-tap-delay: should contain rx_clk_tap_delay in tegra_spi_device_controller_data
- tx-clk-tap-delay: should contain tx_clk_tap_delay in tegra_spi_device_controller_data
- reset-gpio: gpio spec for touch reset
- platform-id: value for spec platform_id in rm_spi_ts_platform_data
- name-of-clock: spec clock name for name_of_clock in rm_spi_ts_platform_data
- name-of-clock-con: spec clock name for name_of_clock_con in rm_spi_ts_platform_data

Example:

		spi-touch@0 {
			compatible = "raydium,rm_ts_spidev";
			reg = <0>; /* spi chip select 0 */
			spi-max-frequency = <12000000>;
			interrupt-parent = <&gpio>;
			interrupts = <82 0x01>; /* GPIO_PK2 */
			reset-gpio = <&gpio 84 0>; /* GPIO_PK4 */
			config = <0>;
			platform-id = <0x8>;
			name-of-clock = "clk_out_2";
			name-of-clock-con = "extern2";
		};

