qcacld-3.0: Fix anomalies with hdd_stop_bss_link()

Address the following anomalies with hdd_stop_bss_link():
- Parameter usrDataForCallback is unused
- It returns errno but one caller is checking for QDF_STATUS

Change-Id: I31086d790066eec5774cf318eff0f90736b4c92f
CRs-Fixed: 2213062
diff --git a/core/hdd/src/wlan_hdd_hostapd.h b/core/hdd/src/wlan_hdd_hostapd.h
index 2c529b5..c3ff098 100644
--- a/core/hdd/src/wlan_hdd_hostapd.h
+++ b/core/hdd/src/wlan_hdd_hostapd.h
@@ -128,7 +128,7 @@
 			 uint16_t gen_ie_len, uint8_t *gen_ie);
 
 QDF_STATUS hdd_hostapd_sap_event_cb(tpSap_Event pSapEvent,
-				    void *usrDataForCallback);
+				    void *context);
 /**
  * hdd_init_ap_mode() - to init the AP adaptor
  * @adapter: SAP/GO adapter