Update notes for submitted changes

* app_voicemail: Fix module unload leak.

25/918f2837cdcd53b1c9029e3b7a82ef2e5e87e7

@@ -0,0 +1,9 @@
+Code-Review+1: George Joseph <gjoseph@digium.com>
+Code-Review+1: Benjamin Keith Ford <bford@digium.com>
+Code-Review+2: Kevin Harwell <kharwell@digium.com>
+Verified+2: Friendly Automation
+Submitted-by: Friendly Automation
+Submitted-at: Mon, 23 Sep 2019 13:20:50 -0500
+Reviewed-on: https://gerrit.asterisk.org/c/asterisk/+/12899
+Project: asterisk
+Branch: refs/heads/13