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/amcc/ebony/ebony.c b/board/amcc/ebony/ebony.c
index dcafac9..ededb3e 100644
--- a/board/amcc/ebony/ebony.c
+++ b/board/amcc/ebony/ebony.c
@@ -207,14 +207,14 @@
  *	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 strap;
 
 	/*--------------------------------------------------------------------------+
-     *	The ebony board is always configured as the host & requires the
-     *	PCI arbiter to be enabled.
+	 * The ebony board is always configured as the host & requires the
+	 * PCI arbiter to be enabled.
 	 *--------------------------------------------------------------------------*/
 	strap = mfdcr(cpc0_strp1);
 	if ((strap & 0x00100000) == 0) {
@@ -224,7 +224,7 @@
 
 	return 1;
 }
-#endif				/* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */
+#endif	/* defined(CONFIG_PCI) */
 
 /*************************************************************************
  *  pci_target_init