event: Correct duplicate log message in event_notify()

Use a different one for each call.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/event.c b/common/event.c
index 231b9e6..c312556 100644
--- a/common/event.c
+++ b/common/event.c
@@ -123,7 +123,7 @@
 
 	ret = notify_static(&event);
 	if (ret)
-		return log_msg_ret("dyn", ret);
+		return log_msg_ret("sta", ret);
 
 	if (CONFIG_IS_ENABLED(EVENT_DYNAMIC)) {
 		ret = notify_dynamic(&event);