Add touchscreen config and kernel parameters

Add WaRP touchscreen calibration parameter to the ft5x06 kernel module,
and install configuration file to let it operate as a touchscreen
instead of a touchpad.

Signed-off-by: Diego Rondini <diego.rondini@kynetics.it>
Changes to add Bt support for WaRP Murata chip

Preliminary changes from Scott Kerr of Murata to enable Bluetooth functioning

Signed-off-by: Diego Rondini <diego.rondini@kynetics.it>