Merge "RootCanal: Fix hci sniffer packet direction endianness"

  pcap::WriteRecordHeader(*output_, 4 + 1 + packet.size());

  // http://www.tcpdump.org/linktypes.html LINKTYPE_BLUETOOTH_HCI_H4_WITH_PHDR

  uint32_t direction = static_cast<uint32_t>(packet_direction);

  char direction[4] = {0, 0, 0, static_cast<char>(packet_direction)};

  uint8_t idc = static_cast<uint8_t>(packet_type);

  output_->write((char*)&direction, 4);

  output_->write(direction, sizeof(direction));

  output_->write((char*)&idc, 1);

  output_->write((char*)packet.data(), packet.size());

  output_->flush();