Add support for mce threshold registers found in future
AMD family 0x10 processors.  Backwards compatible with
family 0xF hardware.

AK: fixed build on !SMP
Signed-off-by: NJacob Shin <jacob.shin@amd.com>
Signed-off-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>