Input: i8042 - add Dell XPS M1530 to nomux list

Dell XPS M1530 needs i8042.nomux=1 for ALPS touchpad to work as
reported on https://qa.mandriva.com/show_bug.cgi?id=43532

It is said that before A08 bios version this isn't needed (I don't
have the hardware so can't check), and suppose this will not break
with bios versions before A08.

Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Tested-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>