Update notes for submitted changes

* res_pjsip_session: Always produce offer on re-INVITE without SDP.

7a/cb6e2194026da7ed8e1ef59cdf4e953a37bf67

@@ -0,0 +1,9 @@
+Code-Review+1: Benjamin Keith Ford <bford@digium.com>
+Code-Review+2: George Joseph <gjoseph@digium.com>
+Verified+1: Joshua Colp <jcolp@sangoma.com>
+Verified+2: George Joseph <gjoseph@digium.com>
+Submitted-by: George Joseph <gjoseph@digium.com>
+Submitted-at: Thu, 25 Feb 2021 08:50:44 -0600
+Reviewed-on: https://gerrit.asterisk.org/c/asterisk/+/15433
+Project: asterisk
+Branch: refs/heads/16