Update the API to be more compatibe with NetBSD, but also add new extensions: bus_sapce_{read,write}_raw_region_[248] a la the raw_multi variants.  These last ones are not yet used.
Update the API to be more compatibe with NetBSD, but also add new extensions:
bus_sapce_{read,write}_raw_region_[248] a la the raw_multi variants.  These
last ones are not yet used.

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