Merge "Avoiding sending set volume to volume level same as current volume level"

void Device::SetVolume(int8_t volume) {

  // TODO (apanicke): Implement logic for Multi-AVRCP

  DEVICE_VLOG(1) << __func__ << ": volume=" << (int)volume;

  if (volume == volume_) {

    DEVICE_VLOG(3) << __func__

                   << ": Ignoring volume change same as current volume level";

  }

  auto request = SetAbsoluteVolumeRequestBuilder::MakeBuilder(volume);

  uint8_t label = MAX_TRANSACTION_LABEL;