x86: remove update_apic from x86_quirks

Impact: cleanup

x86_quirks->update_apic() calling looks crazy. so try to remove it:

 1. every apic take wakeup_cpu member directly
 2. separate es7000_apic to es7000_apic_cluster
 3. use uv_wakeup_cpu directly

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 5b85759..2280d93 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -600,19 +600,7 @@
 early_param("elfcorehdr", setup_elfcorehdr);
 #endif
 
-static int __init default_update_apic(void)
-{
-#ifdef CONFIG_SMP
-	if (!apic->wakeup_cpu)
-		apic->wakeup_cpu = wakeup_secondary_cpu_via_init;
-#endif
-
-	return 0;
-}
-
-static struct x86_quirks default_x86_quirks __initdata = {
-	.update_apic         = default_update_apic,
-};
+static struct x86_quirks default_x86_quirks __initdata;
 
 struct x86_quirks *x86_quirks __initdata = &default_x86_quirks;