Squashfs: Add LZO compression support

Signed-off-by: Chan Jeong <chan.jeong@lge.com>
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
diff --git a/fs/squashfs/squashfs.h b/fs/squashfs/squashfs.h
index 733a17c..3a95ea6 100644
--- a/fs/squashfs/squashfs.h
+++ b/fs/squashfs/squashfs.h
@@ -104,3 +104,6 @@
 
 /* zlib_wrapper.c */
 extern const struct squashfs_decompressor squashfs_zlib_comp_ops;
+
+/* lzo_wrappers.c */
+extern const struct squashfs_decompressor squashfs_lzo_comp_ops;