Merge "Only allow audio V4 for devices targeting level 3" into pi-dev

<compatibility-matrix version="1.0" type="framework" level="3">

    <hal format="hidl" optional="false">

        <name>android.hardware.audio</name>

        <version>2.0</version>

        <version>4.0</version>

        <interface>

            <name>IDevicesFactory</name>

    </hal>

    <hal format="hidl" optional="false">

        <name>android.hardware.audio.effect</name>

        <version>2.0</version>

        <version>4.0</version>

        <interface>

            <name>IEffectsFactory</name>