Update LoRaWAN MAC

Dependents:   LoRaWAN-SX1272-Application-crash LoRaWAN-SX1272-Application-24-31-9sec Canada-SX1272-LoRaWAN-EEPROM Training-Aug2018-SX1272-X-NUCLEO-IKS01A2_Natalia

Fork of LoRaWAN-lib by Semtech

LoRaMac-api-v3.cpp/shortlog@37c12dbc8dc7: not found in manifest