NFS: Use proper naming conventions for NFSv4.1 server scope fields

Clean up:  When naming fields and data types, follow established
conventions to facilitate accurate grep/cscope searches.

Additionally, for consistency, move the scope field into the NFSv4-
specific part of the nfs_client, and free that memory in the logic
that shuts down NFSv4 nfs_clients.

Introduced by commit 99fe60d0 "nfs41: exchange_id operation", April
1 2009.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index b4e2199..471fc9b 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -237,6 +237,7 @@
 		nfs_idmap_delete(clp);
 
 	rpc_destroy_wait_queue(&clp->cl_rpcwaitq);
+	kfree(clp->cl_serverscope);
 }
 
 /* idr_remove_all is not needed as all id's are removed by nfs_put_client */
@@ -305,7 +306,6 @@
 
 	put_net(clp->net);
 	kfree(clp->cl_hostname);
-	kfree(clp->server_scope);
 	kfree(clp->impl_id);
 	kfree(clp);