Save BIOS configured parameters over reset.  Always enable staggered spin-up.
Save BIOS configured parameters over reset.  Always enable staggered spin-up.

Don't clean interrupt status now - have to flush individual ports' status first.

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