x86: Section mismatch fixes

This patch fixes mismatch warnings in smp_checks() (in arch/x86/kernel/smpboot.c):

WARNING: arch/x86/kernel/built-in.o(.text+0x11922): Section mismatch in reference from the function smp_checks() to the variable .cpuinit.data:smp_b_stepping
The function smp_checks() references
the variable __cpuinitdata smp_b_stepping.
This is often because smp_checks lacks a __cpuinitdata
annotation or the annotation of smp_b_stepping is wrong.

---
 smpboot.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 4882a35..de40681 100644
@@ -437,7 +437,7 @@ valid_k7:
 #endif
 }
 
-void smp_checks(void)
+void __cpuinit smp_checks(void)
 {
 	if (smp_b_stepping)
 		printk(KERN_WARNING "WARNING: SMP operation may be unreliable"