[POWERPC] Use __weak macro for smp_setup_processor_id

Use the __weak macro instead of the longer __attribute__ ((weak)) form
in one place in init/main.c.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
--

 init/main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/init/main.c b/init/main.c
index 507c9fb..1687b01 100644
--- a/init/main.c
+++ b/init/main.c
@@ -521,7 +521,7 @@
 	cpu_set(cpu, cpu_possible_map);
 }
 
-void __init __attribute__((weak)) smp_setup_processor_id(void)
+void __init __weak smp_setup_processor_id(void)
 {
 }