Input: elantech - add Fujitsu Lifebook U745 to force crc_enabled

Another Lifebook machine that needs the same quirk as other similar
models to make the driver working.

Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=883192
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>