include/hw/virtio/vhost.h: spelling fix: sate

Fixes: 4a00d5d7 "vhost: Add high-level state save/load functions"
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

include/hw/virtio/vhost.h

@@ -456,7 +456,7 @@ int vhost_save_backend_state(struct vhost_dev *dev, QEMUFile *f, Error **errp);
  * Must only be called while the device and all its vrings are stopped
  * (`VHOST_TRANSFER_STATE_PHASE_STOPPED`).
  *
- * @dev: The vhost device to which to send the sate
+ * @dev: The vhost device to which to send the state
  * @f: Migration stream from which to load the state
  * @errp: Potential error message
  *