Add informational logging to track 0 channel issue.

            } else {

                pcmParams->nChannels = mStreamInfo->numChannels;

                pcmParams->nSamplingRate = mStreamInfo->sampleRate;

                ALOGI("Sampling rate: %lu, channels: %lu",

                      pcmParams->nSamplingRate,

                      pcmParams->nChannels);

            }

            if (!pcmParams->nChannels) ALOGW("Audio contains 0 channels");

            if (!pcmParams->nSamplingRate) ALOGW("Sampling rate of 0 Hz");

            return OMX_ErrorNone;

        }