spapr_lian: add bootindex to qom property

Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Signed-off-by: NGonglei <arei.gonglei@huawei.com>
Reviewed-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

hw/net/spapr_llan.c

@@ -226,6 +226,15 @@ static int spapr_vlan_init(VIOsPAPRDevice *sdev)
     return 0;
 }
 
+static void spapr_vlan_instance_init(Object *obj)
+{
+    VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(obj);
+
+    device_add_bootindex_property(obj, &dev->nicconf.bootindex,
+                                  "bootindex", "",
+                                  DEVICE(dev), NULL);
+}
+
 void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd)
 {
     DeviceState *dev;
@@ -553,6 +562,7 @@ static const TypeInfo spapr_vlan_info = {
     .parent        = TYPE_VIO_SPAPR_DEVICE,
     .instance_size = sizeof(VIOsPAPRVLANDevice),
     .class_init    = spapr_vlan_class_init,
+    .instance_init = spapr_vlan_instance_init,
 };
 
 static void spapr_vlan_register_types(void)