common_video/h264: Make ssilkin@webrtc.org owner.

No-Try: true
Bug: None
Change-Id: If8a068232b2364af7616a72c002537ea2506924d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/185002
Commit-Queue: Markus Handell <handellm@webrtc.org>
Reviewed-by: Tommi <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32161}
diff --git a/common_video/h264/OWNERS b/common_video/h264/OWNERS
new file mode 100644
index 0000000..361ed7e
--- /dev/null
+++ b/common_video/h264/OWNERS
@@ -0,0 +1 @@
+ssilkin@webrtc.org