Use max number of touches from device config instead of hardcoding.
Signed-off-by: NAleksei Mamlin <mamlinav@gmail.com>
Tested-by: NBastien Nocera <hadess@hadess.net>
Acked-by: NBastien Nocera <hadess@hadess.net>
Tested-by: NAntonio Ospite <ao2@ao2.it>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>