nfsd: move <linux/nfsd/stats.h> to fs/nfsd

There are no legitimate users outside of fs/nfsd, so move it there.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 72004ca..7a07f9c 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -19,8 +19,8 @@
 #include <linux/sunrpc/msg_prot.h>
 
 #include <linux/nfsd/debug.h>
-#include <linux/nfsd/stats.h>
 
+#include "stats.h"
 #include "export.h"
 
 /*