packaging: Try nfs and nfs-server

When configuring the NFS service we need to try with both names, as some
distributions use one of them and other distributions use the other.

Change-Id: I5cdb4c1d0930a058f42d63d37fcab647391754ac
Signed-off-by: Juan Hernandez <juan.hernandez@redhat.com>
(cherry picked from commit ec09f0381d193949c2660ed64bcad80c0f641f04)