SMP support for sparc64 is now in -current

[Takeshi Nakayama <tn%catvmics.ne.jp@localhost>]

Hi folks,

Thanks for many people who tested or reviewed my patch.  With your
reports I could feedback to additional improvement.

I just commited my patch to -current, so it makes you can easily
try the SMP support for sparc64.

Thanks,

-- Takeshi Nakayama