PCI: Export symbols required for loadable host driver modules

Export the following symbols so they can be referenced by a PCI host bridge
driver compiled as a kernel loadable module:

  pci_common_swizzle
  pci_create_root_bus
  pci_stop_root_bus
  pci_remove_root_bus
  pci_assign_unassigned_bus_resources
  pci_fixup_irqs

Signed-off-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index e3e17f3..8169597 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -1750,3 +1750,4 @@
 	__pci_bus_assign_resources(bus, &add_list, NULL);
 	BUG_ON(!list_empty(&add_list));
 }
+EXPORT_SYMBOL_GPL(pci_assign_unassigned_bus_resources);