Update notes for submitted changes

* app_voicemail:  Fix stack overrun in append_mailbox

47/214d4de13a50d4615a7d2b4609264626e6e471

@@ -0,0 +1,9 @@
+Code-Review+1: Richard Mudgett <rmudgett@digium.com>
+Code-Review+1: Kevin Harwell <kharwell@digium.com>
+Code-Review+2: George Joseph <gjoseph@digium.com>
+Verified+2: George Joseph <gjoseph@digium.com>
+Submitted-by: George Joseph <gjoseph@digium.com>
+Submitted-at: Mon, 24 Sep 2018 13:49:16 -0500
+Reviewed-on: https://gerrit.asterisk.org/10236
+Project: asterisk
+Branch: refs/heads/15