x86: smp.h move stack_processor_id declartion to cpu.h

Impact: cleanup

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h
index 29aa6d0..f958e7e 100644
--- a/arch/x86/include/asm/cpu.h
+++ b/arch/x86/include/asm/cpu.h
@@ -15,6 +15,8 @@
 
 static inline void prefill_possible_map(void) {}
 
+#define stack_smp_processor_id()		0
+
 #endif /* CONFIG_SMP */
 
 struct x86_cpu {