HID: lenovo: Remove sysfs group on failure path

[ Upstream commit b7212600 ]

There is no sysfs_group_remove() on failure path in lenovo_probe_tpkbd().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
[Lee: Back-ported to solve a build dependency]
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: I09051ad04869c4f2d6d2dbe8c353667f4418303d