virtio-net: alias bootindex property explicitly for virt-net-pci/ccw/s390

Since the "bootindex" property is a QOM property and not a qdev property
now, we must alias it explicitly for virtio-net-pci, as well as CCW and
s390-virtio.
Signed-off-by: NGonglei <arei.gonglei@huawei.com>
Reviewed-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

hw/s390x/s390-virtio-bus.c

@@ -162,6 +162,8 @@ static void s390_virtio_net_instance_init(Object *obj)
 
     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
                                 TYPE_VIRTIO_NET);
+    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
+                              "bootindex", &error_abort);
 }
 
 static int s390_virtio_blk_init(VirtIOS390Device *s390_dev)

hw/s390x/virtio-ccw.c

@@ -795,6 +795,8 @@ static void virtio_ccw_net_instance_init(Object *obj)
 
     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
                                 TYPE_VIRTIO_NET);
+    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
+                              "bootindex", &error_abort);
 }
 
 static int virtio_ccw_blk_init(VirtioCcwDevice *ccw_dev)

hw/virtio/virtio-pci.c

@@ -1466,6 +1466,8 @@ static void virtio_net_pci_instance_init(Object *obj)
 
     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
                                 TYPE_VIRTIO_NET);
+    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
+                              "bootindex", &error_abort);
 }
 
 static const TypeInfo virtio_net_pci_info = {