Update notes for submitted changes

* app_stream_echo: Fix state of added streams.

00/a52b4752497a6e9e942d70a5e07566a1d6fe9c

@@ -0,0 +1,9 @@
+Code-Review+1: Kevin Harwell <kharwell@digium.com>
+Code-Review+1: Benjamin Keith Ford <bford@digium.com>
+Code-Review+2: George Joseph <gjoseph@digium.com>
+Verified+2: Friendly Automation
+Submitted-by: Friendly Automation
+Submitted-at: Fri, 19 Jun 2020 09:15:44 -0500
+Reviewed-on: https://gerrit.asterisk.org/c/asterisk/+/14592
+Project: asterisk
+Branch: refs/heads/master