Update notes for submitted changes

* sig_analog: Changes to improve electromechanical signalling compatibility

24/1686f8600f4321cb953d368d98df2637460719

@@ -0,0 +1,8 @@
+Code-Review+1: N A <mail@interlinked.x10host.com>
+Code-Review+2: Kevin Harwell <kharwell@digium.com>
+Verified+2: Friendly Automation
+Submitted-by: Friendly Automation
+Submitted-at: Fri, 20 Aug 2021 22:54:20 -0500
+Reviewed-on: https://gerrit.asterisk.org/c/asterisk/+/16367
+Project: asterisk
+Branch: refs/heads/18