Add 4-wire/5-wire touchscreen controller.
Signed-off-by: NKsenija Stanojevic <ksenija.stanojevic@gmail.com>
Acked-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NLee Jones <lee.jones@linaro.org>