x86: Update CPU cache attributes table descriptors

Update to latest definitions in:

   http://www.intel.com/Assets/PDF/appnote/241618.pdf



[ Note, this update of the doc has removed some old values which
  we have listed.  I think until we have clarification that they
  were never used in production, they should be left there. ]

Signed-off-by: Dave Jones <davej@redhat.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
LKML-Reference: <20110120012055.GA15985@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>