hal: msm8916: Add correct HFP Tx mute mixer controller

    struct mixer_ctl *ctl;

    const char *mixer_ctl_name = "Voice Tx Mute";

    int ret = 0;

    uint32_t set_values[ ] = {0,

                              ALL_SESSION_VSID,

                              DEFAULT_MUTE_RAMP_DURATION_MS};

    uint32_t set_values[ ] = {0};

    if (audio_extn_hfp_is_active(adev))

        mixer_ctl_name = "HFP Tx Mute";

        mixer_ctl_name = "HFP TX Mute";

    set_values[0] = state;

    ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);