Fix CONFIG_AP=y build after driver_ops set_key merge

wpa_supplicant/ap.c

@@ -262,7 +262,7 @@ struct wpa_driver_ops ap_driver_ops =
 	.hapd_init = ap_driver_init,
 	.hapd_deinit = ap_driver_deinit,
 	.send_ether = ap_driver_send_ether,
-	.hapd_set_key = ap_driver_set_key,
+	.set_key = ap_driver_set_key,
 	.get_seqnum = ap_driver_get_seqnum,
 	.flush = ap_driver_flush,
 	.read_sta_data = ap_driver_read_sta_data,