NFS: Fix the type of struct nfs_fattr->mode

There is no point in using anything other than umode_t, since we copy the
content pretty much directly into inode->i_mode.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 6013acb..0691b9c 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -28,8 +28,7 @@
 
 struct nfs_fattr {
 	unsigned int		valid;		/* which fields are valid */
-	enum nfs_ftype		type;		/* always use NFSv2 types */
-	__u32			mode;
+	umode_t			mode;
 	__u32			nlink;
 	__u32			uid;
 	__u32			gid;