Skip H246 scaling lists in SPS packets

This code is originally written by marc@frankensteinmotorworks.com

Bug: webrtc:8275
Change-Id: I35e6d21b12e71199e0209ff91740d95c9df3bd10
Reviewed-on: https://webrtc-review.googlesource.com/36520
Commit-Queue: Erik Språng <sprang@webrtc.org>
Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21528}
diff --git a/AUTHORS b/AUTHORS
index abf8b5b..799e1cc 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -58,6 +58,7 @@
 Yura Yaroshevich <yura.yaroshevich@gmail.com>
 Hans Knoechel <hans@hans-knoechel.de>
 Korniltsev Anatoly <korniltsev.anatoly@gmail.com>
+Todd Wong <todd.wong.ndq@gmail.com>
 
 &yet LLC <*@andyet.com>
 Agora IO <*@agora.io>