Add sprang@ as owner in modules/rtp_rtcp

Bug: None
Change-Id: I3aa2a0cf7eee229e8e9834313b343ab2808e0caa
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/146708
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Commit-Queue: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28673}
diff --git a/modules/rtp_rtcp/OWNERS b/modules/rtp_rtcp/OWNERS
index 9377d87..e57898a 100644
--- a/modules/rtp_rtcp/OWNERS
+++ b/modules/rtp_rtcp/OWNERS
@@ -3,6 +3,7 @@
 mflodman@webrtc.org
 asapersson@webrtc.org
 danilchap@webrtc.org
+sprang@webrtc.org
 
 # These are for the common case of adding or renaming files. If you're doing
 # structural changes, please get a review from a reviewer in this file.