address registration and coap port updates (#2009)

address registration on behalf of MTD updated.
Default backbone coap port updated.

Author: deepakvenugopal

source/6LoWPAN/Thread/thread_extension.c

@@ -535,6 +535,10 @@ void thread_extension_address_registration(struct protocol_interface_info_entry
     uint8_t seq;
     uint32_t delay_timer;
 
+    if (!thread_extension_version_check(interface->thread_info->version)) {
+        return;
+    }
+
     if (!thread_extension_is_domain_prefix(interface, addr)) {
         return;
     }

source/6LoWPAN/Thread/thread_extension_bbr.c

@@ -104,7 +104,7 @@ static NS_LIST_DEFINE(duplicate_dua_tr_list, duplicate_dua_tr_t, link);
 #define THREAD_BBR_MLR_REGISTRATION_TIMEOUT       600   //<* Default MLR timeout in seconds
 #define THREAD_BBR_DUA_REGISTRATION_TIMEOUT       3600
 #define THREAD_BBR_DUA_REGISTRATION_DELAY         5000  // 5 seconds in ms
-#define THREAD_BBR_BACKBONE_PORT                  5683  //<* Backbone border router
+#define THREAD_BBR_BACKBONE_PORT                  61631  //<* Backbone border router
 #define THREAD_BBR_DUA_DAD_QUERY_TIMEOUT          1     // wait period for Duplicate Address Detection
 #define THREAD_BBR_DUA_DAD_REPEATS                2     // multicast repeated as part of DUA