[POWERPC] Make find_and_init_pbs() a void function

It always returned 0 and noone checked.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index ace9f4c..1616a44 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -274,7 +274,7 @@
 	return 0;
 }
 
-unsigned long __init find_and_init_phbs(void)
+void __init find_and_init_phbs(void)
 {
 	struct device_node *node;
 	struct pci_controller *phb;
@@ -319,8 +319,6 @@
 		if (prop)
 			pci_assign_all_buses = *prop;
 	}
-
-	return 0;
 }
 
 /* RPA-specific bits for removing PHBs */