nfs41: make nfs service embedded gPlazma avare

Acked-by: Gerd Behrmann
Target: trunk
Require-book: no
Require-notes: no
Patch: http://rb.dcache.org/r/5818/
Merge pull request #140 from kofemann/nfs-with-local-gplazma

Nfs with local gplazma