Add canned_message_plugin_messages back

radioconfig.proto

@@ -673,6 +673,14 @@ message RadioConfig {
      */
     string canned_message_plugin_allow_input_source = 171;
 
+    /*
+      * Predefined messages for CannedMessagePlugin separated by '|' characters.
+      * Note: Split out the messages out to their own messages because we want to store 1,000 characters.
+      * and the entire message must fit within 256 bytes.
+      * Not sure if we should deprecate this or just remove it since we're in dev phase.
+      */
+    string canned_message_plugin_messages = 172 [deprecated = true];
+
     /*
      * CannedMessagePlugin also sends a bell character with the messages.
      * ExternalNotificationPlugin can benefit from this feature.