Enable NX support in the resume path.  Makes suspend/resume work with the PAE pmap.
Enable NX support in the resume path.  Makes suspend/resume work with the
PAE pmap.

ok deraadt@, mlarkin@

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