NFS: Move v3 declarations out of internal.h

I am generally against the "one big header file" approach, and
everything in the client includes this file.  Let's move all the NFS v3
declarations into a v3-only header file.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 809670e..524f9f8 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -22,6 +22,7 @@
 
 #include "iostat.h"
 #include "internal.h"
+#include "nfs3_fs.h"
 
 #define NFSDBG_FACILITY		NFSDBG_PROC