ATI SB700 can be handled in ahci mode like SB600. suggested by and ok kettenis@
ATI SB700 can be handled in ahci mode like SB600. suggested by
and ok kettenis@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars