x86: apic_64.c - setup_APIC_timer has to be __cpuinit function

There is no need to hold this code if CPU_HOTPLUG is not
defined.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index cd86085..8f55127 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -400,7 +400,7 @@
  * Setup the local APIC timer for this CPU. Copy the initilized values
  * of the boot CPU and register the clock event in the framework.
  */
-static void setup_APIC_timer(void)
+static void __cpuinit setup_APIC_timer(void)
 {
 	struct clock_event_device *levt = &__get_cpu_var(lapic_events);