Log NGAP Initial Context Setup

For debugging, it might notably be useful to see the AMF UE NGAP ID. Log
it in the single Initial Context Setup message.

openair3/NGAP/ngap_gNB_handlers.c

@@ -849,6 +849,11 @@ static int ngap_gNB_handle_initial_context_request(sctp_assoc_t assoc_id, uint32
 
   itti_send_msg_to_task(TASK_RRC_GNB, ue_desc_p->gNB_instance->instance, message_p);
 
+  NGAP_INFO("Initial Context Setup UE RAN ID %d UE AMF ID %ld: %d PDU session(s)\n",
+            msg->gNB_ue_ngap_id,
+            msg->amf_ue_ngap_id,
+            msg->nb_of_pdusessions);
+
   return 0;
 }