wlan: Delete any associated STAs on AP/P2P GO teardown.

Delete any associated STAs entry and send deauth to each
associated STA on removing or tearing down AP/P2P GO.

Change-Id: I217c66b52ce186836fddba3e7cda4c1c0f7e9c9d
CRs-Fixed: 710966
diff --git a/CORE/HDD/inc/wlan_hdd_hostapd.h b/CORE/HDD/inc/wlan_hdd_hostapd.h
index 8d519f3..ca2889b 100644
--- a/CORE/HDD/inc/wlan_hdd_hostapd.h
+++ b/CORE/HDD/inc/wlan_hdd_hostapd.h
@@ -97,4 +97,5 @@
 #ifdef FEATURE_WLAN_CH_AVOID
 void hdd_hostapd_ch_avoid_cb(void *pAdapter, void *indParam);
 #endif /* FEATURE_WLAN_CH_AVOID */
+int hdd_del_all_sta(hdd_adapter_t *pAdapter);
 #endif    // end #if !defined( WLAN_HDD_HOSTAPD_H )