x86: unify __cpu_up.

function definition is moved to common header. x86_64 version
is now called native_cpu_up

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/asm-x86/smp.h b/include/asm-x86/smp.h
index d9782f4..7dd7141 100644
--- a/include/asm-x86/smp.h
+++ b/include/asm-x86/smp.h
@@ -24,6 +24,11 @@
 #ifdef CONFIG_SMP
 extern struct smp_ops smp_ops;
 
+static inline int __cpu_up(unsigned int cpu)
+{
+	return smp_ops.cpu_up(cpu);
+}
+
 static inline void smp_send_reschedule(int cpu)
 {
 	smp_ops.smp_send_reschedule(cpu);
@@ -35,6 +40,8 @@
 {
 	return smp_ops.smp_call_function_mask(mask, func, info, wait);
 }
+
+int native_cpu_up(unsigned int cpunum);
 #endif
 
 #ifdef CONFIG_X86_32