ppc32: export a few more things where they are defined

... and remove the exports from ppc_ksyms.c.

Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c
index 2d3c557..b5cf52f 100644
--- a/arch/ppc/kernel/pci.c
+++ b/arch/ppc/kernel/pci.c
@@ -813,12 +813,14 @@
 	/* Now, lookup childs of the hose */
 	return scan_OF_childs_for_device(node->child, busnr, devfn);
 }
+EXPORT_SYMBOL(pci_busdev_to_OF_node);
 
 struct device_node*
 pci_device_to_OF_node(struct pci_dev *dev)
 {
 	return pci_busdev_to_OF_node(dev->bus, dev->devfn);
 }
+EXPORT_SYMBOL(pci_device_to_OF_node);
 
 /* This routine is meant to be used early during boot, when the
  * PCI bus numbers have not yet been assigned, and you need to
@@ -890,6 +892,7 @@
 	}
 	return -ENODEV;
 }
+EXPORT_SYMBOL(pci_device_from_OF_node);
 
 void __init
 pci_process_bridge_OF_ranges(struct pci_controller *hose,