ft5x06_ts: Add calibration parameter

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
ft5x06_ts: rename to ft5x06 to align with name

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
ft5x06: set ABS_X/ABS_Y range so calibration works

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>