wl12xx: declare suspend/resume callbacks (for wowlan)

Additionally, add wow_enabled field to wl, to indicate
whether wowlan was configured.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h
index ab0c2f1..9629e90 100644
--- a/drivers/net/wireless/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -565,6 +565,12 @@
 	int tcxo_clock;
 
 	/*
+	 * wowlan trigger was configured during suspend.
+	 * (currently, only "ANY" trigger is supported)
+	 */
+	bool wow_enabled;
+
+	/*
 	 * AP-mode - links indexed by HLID. The global and broadcast links
 	 * are always active.
 	 */