WorkStruct: make allyesconfig

Fix up for make allyesconfig.

Signed-Off-By: David Howells <dhowells@redhat.com>
diff --git a/include/net/ieee80211softmac.h b/include/net/ieee80211softmac.h
index 617b672..8911927 100644
--- a/include/net/ieee80211softmac.h
+++ b/include/net/ieee80211softmac.h
@@ -108,8 +108,8 @@
 	/* Scan retries remaining */
 	int scan_retry;
 
-	struct work_struct work;
-	struct work_struct timeout;
+	struct delayed_work work;
+	struct delayed_work timeout;
 };
 
 struct ieee80211softmac_bss_info {