[PATCH] i386: check capability

Currently the i386 architecture checks the family for mce capability and this
removes that and uses the CPUID information.  Tested on a K8 revE and a
family10h processor.

This eliminates checking of a set AMD procesor family if mce is
allowed and relies on the information being in CPUID.

Signed-off-by: Joachim Deguara <joachim.deguara@amd.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>