fs: rename "rename2" i_op to "rename"

Generated patch:

sed -i "s/\.rename2\t/\.rename\t\t/" `git grep -wl rename2`
sed -i "s/\brename2\b/rename/g" `git grep -wl rename2`

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 14ae4b8..7d0e0f7 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -896,7 +896,7 @@
 	.link = cifs_hardlink,
 	.mkdir = cifs_mkdir,
 	.rmdir = cifs_rmdir,
-	.rename2 = cifs_rename2,
+	.rename = cifs_rename2,
 	.permission = cifs_permission,
 	.setattr = cifs_setattr,
 	.symlink = cifs_symlink,