Input: wistron - add support for Fujitsu-Siemens Amilo Pro v3505

Wistron button support for Fujitsu-Siemens Amilo Pro Edition V3505.

Signed-off-by: Remi Herilier <rherilier@yahoo.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>