Fountains do not support change mode request and therefore
should be excluded from idle reset attempts.

Also:
 - do not re-submit URB when we decide that touchpad needs to be
   reinicialized
 - do not repeat size detection when reinitializing the touchpad
 - Add missing KERN_* prefixes to messages
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Acked-by: NJohannes Berg <johannes@sipsolutions.net>