Merge "bootanimation: Tweak parameters for pcm_open for playing boot sounds." into lmp-dev

    config.rate = chunkFmt->sample_rate;

    config.period_size = mPeriodSize;

    config.period_count = mPeriodCount;

    config.start_threshold = mPeriodSize / 4;

    config.stop_threshold = INT_MAX;

    config.avail_min = config.start_threshold;

    if (chunkFmt->bits_per_sample != 16) {

        ALOGE("only 16 bit WAV files are supported");

        goto exit;