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/sequoia/sequoia.c b/board/amcc/sequoia/sequoia.c
index ba365ae..a8966f0 100644
--- a/board/amcc/sequoia/sequoia.c
+++ b/board/amcc/sequoia/sequoia.c
@@ -426,23 +426,10 @@
  *	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;
-#if 0
-	/*--------------------------------------------------------------------------+
-	 *	Cactus is always configured as the host & requires the
-	 *	PCI arbiter to be enabled ???
-	 *--------------------------------------------------------------------------*/
-	unsigned long strap;
-	mfsdr(sdr_sdstp1, strap);
-	if ((strap & SDR0_SDSTP1_PAE_MASK) == 0) {
-		printf("PCI: SDR0_STRP1[PAE] not set.\n");
-		printf("PCI: Configuration aborted.\n");
-		return 0;
-	}
-#endif
 
 	/*-------------------------------------------------------------------------+
 	  | Set priority for all PLB3 devices to 0.
@@ -480,7 +467,7 @@
 
 	return 1;
 }
-#endif				/* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */
+#endif /* defined(CONFIG_PCI) */
 
 /*************************************************************************
  *  pci_target_init