tick: Call tick_init late

To convert the clockevents code to cpumask_var_t we need to move the
init call after the allocator setup. 

Clockevents are earliest registered from time_init() as they need
interrupts being set up, so this is safe.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20130306111537.304379448@linutronix.de
Cc: Rusty Russell <rusty@rustcorp.com.au>
diff --git a/init/main.c b/init/main.c
index 63534a1..b3e0614 100644
--- a/init/main.c
+++ b/init/main.c
@@ -494,7 +494,6 @@
  * Interrupts are still disabled. Do necessary setups, then
  * enable them
  */
-	tick_init();
 	boot_cpu_init();
 	page_address_init();
 	printk(KERN_NOTICE "%s", linux_banner);
@@ -551,6 +550,7 @@
 	/* init some links before init_ISA_irqs() */
 	early_irq_init();
 	init_IRQ();
+	tick_init();
 	init_timers();
 	hrtimers_init();
 	softirq_init();