Update thread neighbor table initialisation (ARMmbed#1926)

Initialise "full data request" bit if link request is received from
router.

Author: Arto Kinnunen

source/6LoWPAN/Thread/thread_router_bootstrap.c

@@ -1811,6 +1811,11 @@ void thread_router_bootstrap_mle_receive_cb(int8_t interface_id, mle_message_t *
                 update_mac_mib = true;
                 entry_temp->mac16 = shortAddress; // short address refreshed
 
+                if (thread_is_router_addr(shortAddress)) {
+                    // Set full data as REED/Router needs full data (SED will not make links)
+                    thread_neighbor_class_request_full_data_setup_set(&cur->thread_info->neighbor_class, entry_temp->index, true);
+                }
+
                 if (entry_temp->connected_device) {
                     if (mle_tlv_read_tlv(MLE_TYPE_ADDRESS_REGISTRATION, mle_msg->data_ptr, mle_msg->data_length, &addressRegisteredTlv)) {
                         if (!entry_temp->ffd_device) {