PowerPC: change board specific early pci_init() into generic.

Signed-off-by: Andre Schwarz <andre.schwarz@matrix-vision.de>
diff --git a/include/configs/CPC45.h b/include/configs/CPC45.h
index 668cfa2..6451263 100644
--- a/include/configs/CPC45.h
+++ b/include/configs/CPC45.h
@@ -467,6 +467,7 @@
  *-----------------------------------------------------------------------
  */
 #define CONFIG_PCI			/* include pci support			*/
+#define CONFIG_SYS_EARLY_PCI_INIT
 #undef	CONFIG_PCI_PNP
 #undef	CONFIG_PCI_SCAN_SHOW