Some "raw" wrappers around "stream" methods.
Some "raw" wrappers around "stream" methods.

Also, define __HAVE_NEW_BUS_DMAMAP_SYNC, we will have to start converting
code to using the five-argument variant on bus_dmamap_sync.

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