Merge "Add a mechanism for Audio Feeding Parameters negotiation"

<!-- A2dp Audio HAL Audio Policy Configuration file -->

<module name="a2dp" halVersion="2.0">

    <mixPorts>

        <mixPort name="a2dp output" role="source">

            <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"

                     samplingRates="44100"

                     channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>

        </mixPort>

        <mixPort name="a2dp output" role="source"/>

        <mixPort name="a2dp input" role="sink">

            <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"

                     samplingRates="44100,48000"