Compile warning fixed
Patch by Stefan Roese, 29 Nov 2005
diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c
index 0b5883c..a463053 100644
--- a/cpu/ppc4xx/cpu.c
+++ b/cpu/ppc4xx/cpu.c
@@ -63,7 +63,7 @@
 }
 #endif
 
-#if defined(CONFIG_PCI)
+#if defined(CONFIG_PCI) && !defined(CONFIG_IOP480) && !defined(CONFIG_405)
 int pci_arbiter_enabled(void)
 {
 #if defined(CONFIG_405GP)