x86: remove mach_apic.h

Spread mach_apic.h definitions into genapic.h. (with some knock-on effects
on smp.h and apic.h.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index e0f29be..d802c84 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -231,7 +231,7 @@
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-#include <mach_apic.h>
+#include <asm/genapic.h>
 
 /* A cpu has been removed from cpu_online_mask.  Reset irq affinities. */
 void fixup_irqs(void)