platform/x86: msi-laptop: Fix resource cleanup

Fix the input-device not getting free-ed on probe-errors and
fix the msi_touchpad_dwork not getting cancelled on neither
probe-errors nor on remove.

Fixes: 143a4c02 ("msi-laptop: send out touchpad on/off key")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220825141336.208597-3-hdegoede@redhat.com