Input: 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" roblem on various HP laptops, such
as nx7400.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 49ac696..f0f9413 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -652,6 +652,7 @@
 	psmouse->set_rate = synaptics_set_rate;
 	psmouse->disconnect = synaptics_disconnect;
 	psmouse->reconnect = synaptics_reconnect;
+	psmouse->cleanup = synaptics_reset;
 	psmouse->pktsize = 6;
 	/* Synaptics can usually stay in sync without extra help */
 	psmouse->resync_time = 0;