Update notes for submitted changes

* chan_sip: when getting sip pvt return failure if not found

c0/d4f1880e0bee6f8a2e283a8333b2b89c543f13

@@ -0,0 +1,9 @@
+Code-Review+1: Joshua Colp <jcolp@digium.com>
+Code-Review+1: Kevin Harwell <kharwell@digium.com>
+Code-Review+2: George Joseph <gjoseph@digium.com>
+Verified+2: Joshua Colp <jcolp@digium.com>
+Submitted-by: Joshua Colp <jcolp@digium.com>
+Submitted-at: Fri, 08 Sep 2017 09:37:51 -0500
+Reviewed-on: https://gerrit.asterisk.org/6455
+Project: asterisk
+Branch: refs/heads/13