pci: declare pciauto functions in header

The FSL PCI driver uses local prototypes for
pciauto_[pre|post]scan_setup_bridge(), this does not seem right,
so move them to the <pci.h> file.

Fixed a small extern declaration too, this is harmless but distracts
the view since all other prototypes are explicitly external.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/include/pci.h b/include/pci.h
index 7d98ad4..eba122f 100644
--- a/include/pci.h
+++ b/include/pci.h
@@ -527,8 +527,12 @@
 				 struct pci_region *mem,
 				 struct pci_region *prefetch,
 				 struct pci_region *io);
+extern void pciauto_prescan_setup_bridge(struct pci_controller *hose,
+				 pci_dev_t dev, int sub_bus);
+extern void pciauto_postscan_setup_bridge(struct pci_controller *hose,
+				 pci_dev_t dev, int sub_bus);
 extern void pciauto_config_init(struct pci_controller *hose);
-int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev);
+extern int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev);
 
 extern pci_dev_t pci_find_device (unsigned int vendor, unsigned int device, int index);
 extern pci_dev_t pci_find_devices (struct pci_device_id *ids, int index);