virtio-rng: change default backend to rng-builtin

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20190820160615.14616-4-lvivier@redhat.com>
diff --git a/hw/virtio/virtio-rng.c b/hw/virtio/virtio-rng.c
index fcf3b2e..e93bed0 100644
--- a/hw/virtio/virtio-rng.c
+++ b/hw/virtio/virtio-rng.c
@@ -19,7 +19,6 @@
 #include "hw/virtio/virtio-rng.h"
 #include "sysemu/rng.h"
 #include "sysemu/runstate.h"
-#include "sysemu/rng-random.h"
 #include "qom/object_interfaces.h"
 #include "trace.h"
 
@@ -193,7 +192,7 @@
     }
 
     if (vrng->conf.rng == NULL) {
-        Object *default_backend = object_new(TYPE_RNG_RANDOM);
+        Object *default_backend = object_new(TYPE_RNG_BUILTIN);
 
         user_creatable_complete(USER_CREATABLE(default_backend),
                                 &local_err);