Wi-sun LLC update

Over header worstcase added brodacast shedule added length.

Add lowopan interface user to add broadcast shedule to broadcast packet.

Change-Id: I628089b49935f05a79d95a758536fcd59ae0a6b1

source/6LoWPAN/ws/ws_llc_data_service.c

@@ -635,7 +635,7 @@ static uint16_t ws_mpx_header_size_get(llc_data_base_t *base, uint16_t user_id)
  }
 
  //Dynamic length
- header_size += 2 + WS_WP_SUB_IE_ELEMENT_HEADER_LENGTH + ws_wp_nested_hopping_schedule_length(base->ie_params.hopping_schedule, true);
+ header_size += 2 + WS_WP_SUB_IE_ELEMENT_HEADER_LENGTH + ws_wp_nested_hopping_schedule_length(base->ie_params.hopping_schedule, true) + ws_wp_nested_hopping_schedule_length(base->ie_params.hopping_schedule, false);
 
  } else if (MPX_KEY_MANAGEMENT_ENC_USER_ID) {
  header_size += 7 + 5 + 2;
@@ -704,6 +704,11 @@ static void ws_llc_mpx_data_request(const mpx_api_t *api, const struct mcps_data
  if (base->ie_params.vendor_payload_length) {
  nested_wp_id.vp_ie = true;
  }
+
+ if (!data->TxAckReq) {
+ nested_wp_id.bs_ie = true;
+ }
+
  } else if (user_id == MPX_KEY_MANAGEMENT_ENC_USER_ID) {
  ie_header_mask.bt_ie = ws_eapol_relay_state_active(base->interface_ptr);
  ie_header_mask.ea_ie = ws_eapol_handshake_first_msg(data->msdu, data->msduLength, base->interface_ptr);