Input: i8042 - add Amoi to the MUX blacklist

ALPS touchpad on Amoi laptops (Amoi is a vendor in China) is not
detected when keyboard controller is in MUX mode, add to blacklist.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>