hostapd: Add wowlan_triggers config param

New kernels in wiphy_suspend() will call cfg80211_leave_all()
that will eventually end up in cfg80211_stop_ap() unless
wowlan_triggers were set.

Bug: 17269024

Change-Id: I14d2191eda090cd86cabe1e5f059975fdf2f69e8
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/ap/ap_config.h b/src/ap/ap_config.h
index 905aec3..2858c6e 100644
--- a/src/ap/ap_config.h
+++ b/src/ap/ap_config.h
@@ -508,6 +508,8 @@
 	unsigned int sae_anti_clogging_threshold;
 	int *sae_groups;
 
+	char *wowlan_triggers; /* Wake-on-WLAN triggers */
+
 #ifdef CONFIG_TESTING_OPTIONS
 	u8 bss_load_test[5];
 	u8 bss_load_test_set;