dt-bindings: stmpe: Reformatting parameter list and use tabs only

 - compatible: "st,stmpe-ts"

Optional properties:

- st,sample-time: ADC converstion time in number of clock.  (0 -> 36 clocks, 1 ->

  44 clocks, 2 -> 56 clocks, 3 -> 64 clocks, 4 -> 80 clocks, 5 -> 96 clocks, 6

  -> 144 clocks), recommended is 4.

- st,mod-12b: ADC Bit mode (0 -> 10bit ADC, 1 -> 12bit ADC)

- st,ref-sel: ADC reference source (0 -> internal reference, 1 -> external

  reference)

- st,adc-freq: ADC Clock speed (0 -> 1.625 MHz, 1 -> 3.25 MHz, 2 || 3 -> 6.5 MHz)

- st,ave-ctrl: Sample average control (0 -> 1 sample, 1 -> 2 samples, 2 -> 4

  samples, 3 -> 8 samples)

- st,touch-det-delay: Touch detect interrupt delay (0 -> 10 us, 1 -> 50 us, 2 ->

  100 us, 3 -> 500 us, 4-> 1 ms, 5 -> 5 ms, 6 -> 10 ms, 7 -> 50 ms) recommended

  is 3

- st,settling: Panel driver settling time (0 -> 10 us, 1 -> 100 us, 2 -> 500 us, 3

  -> 1 ms, 4 -> 5 ms, 5 -> 10 ms, 6 for 50 ms, 7 -> 100 ms) recommended is 2

- st,fraction-z: Length of the fractional part in z (fraction-z ([0..7]) = Count of

  the fractional part) recommended is 7

- st,i-drive: current limit value of the touchscreen drivers (0 -> 20 mA typical 35

  mA max, 1 -> 50 mA typical 80 mA max)

- st,sample-time	: ADC conversion time in number of clock.

				0 -> 36 clocks

				1 -> 44 clocks

				2 -> 56 clocks

				3 -> 64 clocks

				4 -> 80 clocks (recommended)

				5 -> 96 clocks

				6 -> 144 clocks

- st,mod-12b		: ADC Bit mode

				0 -> 10bit ADC

				1 -> 12bit ADC

- st,ref-sel		: ADC reference source

				0 -> internal

				1 -> external

- st,adc-freq		: ADC Clock speed

				0 -> 1.625 MHz

				1 -> 3.25 MHz

				2 || 3 -> 6.5 MHz

- st,ave-ctrl		: Sample average control

				0 -> 1 sample

				1 -> 2 samples

				2 -> 4 samples

				3 -> 8 samples

- st,touch-det-delay	: Touch detect interrupt delay (recommended is 3)

				0 -> 10 us

				1 -> 50 us

				2 -> 100 us

				3 -> 500 us

				4 -> 1 ms

				5 -> 5 ms

				6 -> 10 ms

				7 -> 50 ms

- st,settling		: Panel driver settling time (recommended is 2)

				0 -> 10 us

				1 -> 100 us

				2 -> 500 us

				3 -> 1 ms

				4 -> 5 ms

				5 -> 10 ms

				6 -> 50 ms

				7 -> 100 ms

- st,fraction-z		: Length of the fractional part in z (recommended is 7)

			  (fraction-z ([0..7]) = Count of the fractional part)

- st,i-drive		: current limit value of the touchscreen drivers

				0 -> 20 mA (typical 35mA max)

				1 -> 50 mA (typical 80 mA max)

Node name must be stmpe_touchscreen and should be child node of stmpe node to

which it belongs.