libkrun: Add vhost-user sound device constants and support

Add constants and device-specific configuration for virtio-snd
(vhost-user sound device).

Signed-off-by: Dorinda Bassey <dbassey@redhat.com>

Author: Dorinda Bassey

include/libkrun.h

@@ -732,6 +732,13 @@ int32_t krun_set_snd_device(uint32_t ctx_id, bool enable);
 #define KRUN_VHOST_USER_RNG_NUM_QUEUES 1
 #define KRUN_VHOST_USER_RNG_QUEUE_SIZES ((uint16_t[]){256})
 
+/**
+ * Vhost-user sound device default queue configuration.
+ * Sound device uses 4 queues: control (idx 0), event (idx 1), TX/playback (idx 2), RX/capture (idx 3).
+ */
+#define KRUN_VHOST_USER_SND_NUM_QUEUES 4
+#define KRUN_VHOST_USER_SND_QUEUE_SIZES ((uint16_t[]){64, 64, 64, 64})
+
 /**
  * Add a vhost-user device to the VM.
  *