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>

fs/udf/namei.c

@@ -1357,6 +1357,6 @@ const struct inode_operations udf_dir_inode_operations = {
 	.mkdir				= udf_mkdir,
 	.rmdir				= udf_rmdir,
 	.mknod				= udf_mknod,
-	.rename2			= udf_rename,
+	.rename				= udf_rename,
 	.tmpfile			= udf_tmpfile,
 };