alpha: Use handle_percpu_irq for the timer interrupt

Signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>

arch/alpha/kernel/irq_alpha.c

@@ -236,7 +236,7 @@ void __init
 init_rtc_irq(void)
 {
 	irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip,
-				      handle_simple_irq, "RTC");
+				      handle_percpu_irq, "RTC");
 	setup_irq(RTC_IRQ, &timer_irqaction);
 }