sched: Fix spelling of sibling

No logic changes, only spelling.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Cc: linuxppc-dev@ozlabs.org
Cc: David Howells <dhowells@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <15249.1277776921@neuling.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 9b41ece..22f08cb 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1270,7 +1270,7 @@
 }
 
 #ifdef CONFIG_SMP
-int arch_sd_sibiling_asym_packing(void)
+int arch_sd_sibling_asym_packing(void)
 {
 	if (cpu_has_feature(CPU_FTR_ASYM_SMT)) {
 		printk_once(KERN_INFO "Enabling Asymmetric SMT scheduling\n");