sparc32: cleanup code for pci init

Move the ifdeffery to a header file to make the logic more
obvious where we decide between PCI or SBUS init

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c
index 4e23639..b618403 100644
--- a/arch/sparc/kernel/time_32.c
+++ b/arch/sparc/kernel/time_32.c
@@ -228,14 +228,10 @@
 
 void __init time_init(void)
 {
-#ifdef CONFIG_PCI
-	extern void pci_time_init(void);
-	if (pcic_present()) {
+	if (pcic_present())
 		pci_time_init();
-		return;
-	}
-#endif
-	sbus_time_init();
+	else
+		sbus_time_init();
 }