x86/mce: Fix 32-bit build

Got bitten again by the BIT() macro:

 arch/x86/kernel/cpu/mcheck/mce.c: In function '__mcheck_cpu_apply_quirks':
 arch/x86/kernel/cpu/mcheck/mce.c:1453:6: warning: left shift
 count >= width of type arch/x86/kernel/cpu/mcheck/mce.c:1454:7: warning: left shift count >= width of type

Fix it already.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: Frank Arnold <frank.arnold@amd.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1337684026-19740-2-git-send-email-bp@amd64.org


Signed-off-by: Ingo Molnar <mingo@kernel.org>