WorkStruct: make allyesconfig

Fix up for make allyesconfig.

Signed-Off-By: David Howells <dhowells@redhat.com>
diff --git a/drivers/net/chelsio/common.h b/drivers/net/chelsio/common.h
index 5d9dd14..8b1bedb 100644
--- a/drivers/net/chelsio/common.h
+++ b/drivers/net/chelsio/common.h
@@ -209,7 +209,7 @@
 	struct peespi *espi;
 
 	struct port_info port[MAX_NPORTS];
-	struct work_struct stats_update_task;
+	struct delayed_work stats_update_task;
 	struct timer_list stats_update_timer;
 
 	struct semaphore mib_mutex;