powerpc/cpumask: Convert rtasd to new cpumask API

Use cpumask_first, cpumask_next in rtasd code.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/kernel/rtasd.c

@@ -411,9 +411,9 @@ static void rtas_event_scan(struct work_struct *w)
 
 	get_online_cpus();
 
-	cpu = next_cpu(smp_processor_id(), cpu_online_map);
-	if (cpu == NR_CPUS) {
-		cpu = first_cpu(cpu_online_map);
+	cpu = cpumask_next(smp_processor_id(), cpu_online_mask);
+        if (cpu >= nr_cpu_ids) {
+		cpu = cpumask_first(cpu_online_mask);
 
 		if (first_pass) {
 			first_pass = 0;
@@ -466,8 +466,8 @@ static void start_event_scan(void)
 	/* Retreive errors from nvram if any */
 	retreive_nvram_error_log();
 
-	schedule_delayed_work_on(first_cpu(cpu_online_map), &event_scan_work,
-				 event_scan_delay);
+	schedule_delayed_work_on(cpumask_first(cpu_online_mask),
+				 &event_scan_work, event_scan_delay);
 }
 
 static int __init rtas_init(void)