Revert "microblaze: PCI fix typo fault in of_node pointer moving into pci_bus"

This reverts commit c9d761b7.

Ben' commit "microblaze/pci: Move the remains of pci_32.c to pci-common.c"
(sha1: bf13a6fa)
completely removed pci_32.c that's why my fixing commit caused
the problem with merging and need to be revert.
Signed-off-by: Michal Simek <monstr@monstr.eu>

arch/microblaze/pci/pci_32.c

@@ -332,7 +332,7 @@ static void __devinit pcibios_scan_phb(struct pci_controller *hose)
 		       hose->global_number);
 		return;
 	}
-	bus->dev.of_node = of_node_get(node);
+	bus.dev->of_node = of_node_get(node);
 	bus->secondary = hose->first_busno;
 	hose->bus = bus;