sh: convert online CPU map twiddling to cpumask.

This converts from cpu_set() for the online map to set_cpu_online().
The two online map modifiers were the last remaining manual map
manipulation bits, with this in place everything now goes through
cpumask.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/idle.c

@@ -133,7 +133,7 @@ static void do_nothing(void *unused)
 void stop_this_cpu(void *unused)
 {
 	local_irq_disable();
-	cpu_clear(smp_processor_id(), cpu_online_map);
+	set_cpu_online(smp_processor_id(), false);
 
 	for (;;)
 		cpu_sleep();

arch/sh/kernel/smp.c

@@ -102,7 +102,7 @@ asmlinkage void __cpuinit start_secondary(void)
 
 	smp_store_cpu_info(cpu);
 
-	cpu_set(cpu, cpu_online_map);
+	set_cpu_online(cpu, true);
 
 	cpu_idle();
 }