pci: expose TYPE_XIO3130_DOWNSTREAM name

Type name will be used in followup patch for cast check
in pcihp code.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20220301151200.3507298-2-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/hw/pci-bridge/xio3130_downstream.c b/hw/pci-bridge/xio3130_downstream.c
index 080a661..05e2b06 100644
--- a/hw/pci-bridge/xio3130_downstream.c
+++ b/hw/pci-bridge/xio3130_downstream.c
@@ -28,6 +28,7 @@
 #include "migration/vmstate.h"
 #include "qapi/error.h"
 #include "qemu/module.h"
+#include "hw/pci-bridge/xio3130_downstream.h"
 
 #define PCI_DEVICE_ID_TI_XIO3130D       0x8233  /* downstream port */
 #define XIO3130_REVISION                0x1
@@ -173,7 +174,7 @@
 }
 
 static const TypeInfo xio3130_downstream_info = {
-    .name          = "xio3130-downstream",
+    .name          = TYPE_XIO3130_DOWNSTREAM,
     .parent        = TYPE_PCIE_SLOT,
     .class_init    = xio3130_downstream_class_init,
     .interfaces = (InterfaceInfo[]) {