Update domain address lifetime (#1985)

Update domain address lifetime when address is reregistered.

Author: Arto Kinnunen

source/6LoWPAN/Thread/thread_bbr_api.c

@@ -1000,6 +1000,7 @@ int thread_bbr_dua_entry_add(int8_t interface_id, const uint8_t *addr_data_ptr,
         // Route info autofreed
         route->info_autofree = true;
     }
+    route->lifetime = lifetime; // update lifetime also from old route
     map = route->info.info;
     memcpy(map->mleid_ptr, mleid_ptr, 8);
     map->last_contact_time = protocol_core_monotonic_time;