generic-ipi: more merge fallout

fix more API change fallout in recently merged upstream changes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 8051e93..f2cede3 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -1432,7 +1432,7 @@
 	 */
 	memset(&stp_sync, 0, sizeof(stp_sync));
 	preempt_disable();
-	smp_call_function(clock_sync_cpu_start, &stp_sync, 0, 0);
+	smp_call_function(clock_sync_cpu_start, &stp_sync, 0);
 	local_irq_disable();
 	enable_sync_clock();
 
@@ -1465,7 +1465,7 @@
 		stp_sync.in_sync = 1;
 
 	local_irq_enable();
-	smp_call_function(clock_sync_cpu_end, NULL, 0, 0);
+	smp_call_function(clock_sync_cpu_end, NULL, 0);
 	preempt_enable();
 }