Adds srte to api/test/OWNERS.

Bug: webrtc:9883
Change-Id: Ie9ff2bddb4c4140df355560317bc508058c36909
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/164524
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30158}
diff --git a/api/test/OWNERS b/api/test/OWNERS
new file mode 100644
index 0000000..770c299
--- /dev/null
+++ b/api/test/OWNERS
@@ -0,0 +1,2 @@
+srte@webrtc.org
+