x86: mach_apicdef.h need to include before smp.h

smp.h internal has include, so need to include that at first
when genericarch use them need to have different apicdef.h

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/mach-generic/summit.c b/arch/x86/mach-generic/summit.c
index a97ea0f..752edd9 100644
--- a/arch/x86/mach-generic/summit.c
+++ b/arch/x86/mach-generic/summit.c
@@ -4,17 +4,16 @@
 #define APIC_DEFINITION 1
 #include <linux/threads.h>
 #include <linux/cpumask.h>
-#include <asm/smp.h>
 #include <asm/mpspec.h>
 #include <asm/genapic.h>
 #include <asm/fixmap.h>
 #include <asm/apicdef.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
-#include <linux/smp.h>
 #include <linux/init.h>
-#include <asm/mach-summit/mach_apic.h>
 #include <asm/mach-summit/mach_apicdef.h>
+#include <linux/smp.h>
+#include <asm/mach-summit/mach_apic.h>
 #include <asm/mach-summit/mach_ipi.h>
 #include <asm/mach-summit/mach_mpparse.h>