WorkStruct: make allyesconfig

Fix up for make allyesconfig.

Signed-Off-By: David Howells <dhowells@redhat.com>
diff --git a/drivers/net/skge.h b/drivers/net/skge.h
index 537c0aa..23e5275 100644
--- a/drivers/net/skge.h
+++ b/drivers/net/skge.h
@@ -2456,7 +2456,7 @@
 
 	struct net_device_stats net_stats;
 
-	struct work_struct   link_thread;
+	struct delayed_work  link_thread;
 	enum pause_control   flow_control;
 	enum pause_status    flow_status;
 	u8		     rx_csum;