NFS: Pass super operations and xattr handlers in the nfs_subversion

I can set all variables in the nfs_fill_super() function, allowing me to
remove the nfs4_fill_super() function.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs2super.c b/fs/nfs/nfs2super.c
index cef06d4..a9fb69d 100644
--- a/fs/nfs/nfs2super.c
+++ b/fs/nfs/nfs2super.c
@@ -11,6 +11,7 @@
 	.nfs_fs   = &nfs_fs_type,
 	.rpc_vers = &nfs_version2,
 	.rpc_ops  = &nfs_v2_clientops,
+	.sops     = &nfs_sops,
 };
 
 int __init init_nfs_v2(void)