Use correct address when referencing mmconfig aperture while checking
for broken MCFG.  This was a typo when porting the code from 64bit to
32bit.  It caused oopses at boot on some ThinkPads.

Should definitely go into 2.6.15.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>