res_pjsip_registrar_expire: Mark module deprecated.

The functionality of this module was already moved to
res_pjsip_registrar, mark it deprecated and add message to CHANGES.

Change-Id: I90c7d52c7e15e85fde3389d5eaccb05b97848813

CHANGES

@@ -45,6 +45,12 @@ res_pjsip_endpoint_identifier_ip
    you can now predict which endpoint is matched when a request comes in that
    matches both.
 
+res_pjsip_registrar_expire
+------------------
+ * The res_pjsip_registrar_expire module is now deprecated and will be removed
+   from Asterisk 16.  The existing functionality was moved into
+   res_pjsip_registrar.
+
 res_sdp_translator_pjmedia
 ------------------
  * Removed the unused and incomplete SDP processing modules.

res/res_pjsip_registrar_expire.c

@@ -19,7 +19,7 @@
 /*** MODULEINFO
 	<depend>pjproject</depend>
 	<depend>res_pjsip</depend>
-	<support_level>extended</support_level>
+	<support_level>deprecated</support_level>
  ***/
 
 /*
@@ -41,7 +41,7 @@ static int load_module(void)
 }
 
 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "OBSOLETE PJSIP Contact Auto-Expiration",
-	.support_level = AST_MODULE_SUPPORT_EXTENDED,
+	.support_level = AST_MODULE_SUPPORT_DEPRECATED,
 	.load = load_module,
 	.unload = unload_module,
 	.load_pri = AST_MODPRI_APP_DEPEND,