SNDRV_CHMAP_RLFE
[SNDRV_CHMAP_RLFE] = "RLFE",
SNDRV_CHMAP_RLFE, /* right LFE */
map = SNDRV_CHMAP_RLFE;
[VIRTIO_SND_CHMAP_RLFE] = SNDRV_CHMAP_RLFE,