Merge "Count channel mapping number from the back." into sc-dev

    CONVERT_CHECKED(

            deviceAddressFromHal(halMicInfo.device, halMicInfo.address, &micInfo->deviceAddress),

            result);

    size_t chCount;

    for (chCount = 0; chCount < AUDIO_CHANNEL_COUNT_MAX; ++chCount) {

        if (halMicInfo.channel_mapping[chCount] == AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED) {

    int chCount;

    for (chCount = AUDIO_CHANNEL_COUNT_MAX - 1; chCount >= 0; --chCount) {

        if (halMicInfo.channel_mapping[chCount] != AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED) {

            break;

        }

    }

    micInfo->channelMapping.resize(chCount);

    micInfo->channelMapping.resize(chCount + 1);

    for (size_t ch = 0; ch < micInfo->channelMapping.size(); ch++) {

        micInfo->channelMapping[ch] = AudioMicrophoneChannelMapping(halMicInfo.channel_mapping[ch]);

    }