[PATCH] sound: add sampling rates 12000Hz and 24000Hz

["Pape, Andreas (ADITG/ESS3)" <apape@de.adit-jv.com>]

24kHz is used for 'super wideband' voice transmission 12kHz is added 'for completeness'
Fixes: https://github.com/oasis-tcs/virtio-spec/issues/184

Signed-off-by: Andreas Pape <apape@de.adit-jv.com>
---
 device-types/sound/description.tex | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/device-types/sound/description.tex b/device-types/sound/description.tex
index 54c9c8e..bad4415 100644
--- a/device-types/sound/description.tex
+++ b/device-types/sound/description.tex
@@ -504,7 +504,9 @@ \subsubsection{PCM Control Messages}\label{sec:Device Types / Sound Device / Dev
     VIRTIO_SND_PCM_RATE_96000,
     VIRTIO_SND_PCM_RATE_176400,
     VIRTIO_SND_PCM_RATE_192000,
-    VIRTIO_SND_PCM_RATE_384000
+    VIRTIO_SND_PCM_RATE_384000,
+    VIRTIO_SND_PCM_RATE_12000,
+    VIRTIO_SND_PCM_RATE_24000
 };
 
 struct virtio_snd_pcm_info {
--
2.7.4