PCI: register busn_res for iov bus

Insert that to tree.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index e873060..74bbaf8 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -47,7 +47,7 @@
 	if (!child)
 		return NULL;
 
-	child->busn_res.end = busnr;
+	pci_bus_insert_busn_res(child, busnr, busnr);
 	child->dev.parent = bus->bridge;
 	rc = pci_bus_add_child(child);
 	if (rc) {