Read the short addr as 16-bit value before calling mac api (#1585)

Author: Kari Severinkangas

source/6LoWPAN/MAC/mac_helper.c

@@ -433,8 +433,9 @@ void mac_helper_coordinator_address_set(protocol_interface_info_entry_t *interfa
     if (adr_type == ADDR_802_15_4_SHORT) {
         memcpy(interface->mac_parameters->mac_cordinator_info.mac_mlme_coord_address, adr_ptr, 2);
         interface->mac_parameters->mac_cordinator_info.cord_adr_mode = MAC_ADDR_MODE_16_BIT;
+        uint16_t short_addr = common_read_16_bit(interface->mac_parameters->mac_cordinator_info.mac_mlme_coord_address);
         set_req.attr = macCoordShortAddress;
-        set_req.value_pointer = &interface->mac_parameters->mac_cordinator_info.mac_mlme_coord_address;
+        set_req.value_pointer = &short_addr;
         set_req.value_size = 2;
     } else if (adr_type == ADDR_802_15_4_LONG) {
         memcpy(interface->mac_parameters->mac_cordinator_info.mac_mlme_coord_address, adr_ptr, 8);