The new parser may use "PCM" volume, but it was missing the vmaster
slave list, thus "Master" volume didn't control it.
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=41342
Signed-off-by: Takashi Iwai <tiwai@suse.de>
        "Speaker Playback Volume",
        "Mono Playback Volume",
        "Line-Out Playback Volume",
+       "PCM Playback Volume",
        NULL,
 };
 
        "Mono Playback Switch",
        "IEC958 Playback Switch",
        "Line-Out Playback Switch",
+       "PCM Playback Switch",
        NULL,
 };