[PATCH] powerpc: Fix typo in topology.h

The fix to topology.h (5cfccd7f) seems to have
a typeo, struct sched_domain has an idle_idx member but not an idle_id
member. I assume this is the fix.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

include/asm-powerpc/topology.h

@@ -42,7 +42,7 @@ static inline int node_to_first_cpu(int node)
 	.cache_nice_tries	= 1,			\
 	.per_cpu_gain		= 100,			\
 	.busy_idx		= 3,			\
-	.idle_id		= 1,			\
+	.idle_idx		= 1,			\
 	.newidle_idx		= 2,			\
 	.wake_idx		= 1,			\
 	.flags			= SD_LOAD_BALANCE	\