Merge "configs: set appropriate sidetone volume for headphone"

    <path name="sidetone-headphones">

        <path name="sidetone-iir" />

        <ctl name="IIR0 INP0 Volume" value="54" />

        <ctl name="IIR0 INP0 Volume" value="40" />

        <ctl name="IIR0 INP0 MUX" value="DEC0" />

        <ctl name="RX INT0 MIX2 INP" value="SRC0" />

        <ctl name="RX INT1 MIX2 INP" value="SRC0" />