I8K: add BIOS signatures of a newer Dell laptops, also there can be
     more than one temperature sensor reported by BIOS. Lifted from
     driver 1.25 on Massimo Dal Zotto's site.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>