Backport of psmouse suspend/shutdown cleanups

Backport of psmouse suspend/shutdown cleanups

This patch works back to 2.6.17 (earlier kernels seem to
need up/down operations on mutex/semaphore).

psmouse - properly reset mouse on shutdown/suspend

Some people report that they need psmouse module unloaded
for suspend to ram/disk to work properly. Let's make port
cleanup behave the same way as driver unload.

This fixes "bad state" problem on various HP laptops, such
as nx7400.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>