tools/virtio: add virtio 1.0 in vringh_test

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/tools/virtio/vringh_test.c b/tools/virtio/vringh_test.c
index 51d922f..5f94f51 100644
--- a/tools/virtio/vringh_test.c
+++ b/tools/virtio/vringh_test.c
@@ -457,6 +457,8 @@
 			__virtio_set_bit(&vdev, VIRTIO_RING_F_INDIRECT_DESC);
 		else if (strcmp(argv[1], "--eventidx") == 0)
 			__virtio_set_bit(&vdev, VIRTIO_RING_F_EVENT_IDX);
+		else if (strcmp(argv[1], "--virtio-1") == 0)
+			__virtio_set_bit(&vdev, VIRTIO_F_VERSION_1);
 		else if (strcmp(argv[1], "--slow-range") == 0)
 			getrange = getrange_slow;
 		else if (strcmp(argv[1], "--fast-vringh") == 0)