o2micro patches

[M. Warner Losh]

OK.  Here's a very raw patch.  It has a bunch of other junk in it, but
it also has the o2micro patches that people have been asking for.  It
seems to be working for me.  Please comment on it.

http://people.freebsd.org/~imp/o2micro-newcard.diff

I suppose it would be easy to do similar patches for OLDCARD, but I'm
not inclined to do them at this time.  Too many irons, not enough
fires :-)

Warner