[mmotm] relay: fix build error

[KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>]

against: mmotm
patchname: relay-add-buffer-only-channels-useful-for-early-logging-fix.patch
applies after: relay-add-buffer-only-channels-useful-for-early-logging.patch

recently, smp_call_function remove retry argument.
it cause following build error on mmotm.

	kernel/relay.c: In function ‘relay_late_setup_files’:
	kernel/relay.c:754: error: too many arguments to function ‘smp_call_function_single’
	make[1]: *** [kernel/relay.o] error 1



Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
CC: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Tom Zanussi <tzanussi@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>

---
 kernel/relay.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: b/kernel/relay.c
===================================================================
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -751,7 +751,7 @@ int relay_late_setup_files(struct rchan 
 			/* relay_channels_mutex must be held, so wait. */
 			err = smp_call_function_single(i,
 						       __relay_set_buf_dentry,
-						       &disp, 0, 1);
+						       &disp, 1);
 		}
 		if (unlikely(err))
 			break;