ppc4xx: Add pci_pre_init() for 405 boards

This patch removes the CFG_PCI_PRE_INIT option completely, since
it's not needed anymore with the patch from Matthias Fuchs with
the "weak" pci_pre_init() implementation.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/pcs440ep/pcs440ep.c b/board/pcs440ep/pcs440ep.c
index 8858f0a..b73ab2a 100644
--- a/board/pcs440ep/pcs440ep.c
+++ b/board/pcs440ep/pcs440ep.c
@@ -217,7 +217,7 @@
  *	certain pre-initialization actions.
  *
  ************************************************************************/
-#if defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT)
+#if defined(CONFIG_PCI)
 int pci_pre_init(struct pci_controller *hose)
 {
 	unsigned long addr;
@@ -258,7 +258,7 @@
 
 	return 1;
 }
-#endif				/* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */
+#endif	/* defined(CONFIG_PCI) */
 
 /*************************************************************************
  *  pci_target_init