commit 8543cf1c upstream.

LEN0037 found in the Lenovo ThinkPad X1 Carbon 2nd (2014 model)
Reported-and-tested-by: Bjoern Olausson <bjoern@olausson.de>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>