This adds defines for the hypertransport capability subtypes and starts
using them a little.

[akpm@osdl.org: fix typo]
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>