Convert to nmount() and remove hardcoded checks for ufs, msdosfs, ntfs, and cd9660.
Convert to nmount() and remove hardcoded checks for ufs, msdosfs, ntfs,
and cd9660.

PR:	bin/97642

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase