qcacld-3.0: Use hdd_for_each_sta_ref_safe API for connection status

When a NAN request(NAN enable/disable/any generic) is received
from userspace, host driver checks if any connection(STA/SAP/P2P)
is in progress by iterating through adapters. The request would be
rejected if any adapter has connection_in_progress status.

But if the adapter is getting cleaned up in parallel while
iterating through the list for connection status, the iterator
callback may stuck in loop. So, use hdd_for_each_sta_ref_safe()
API to avoid stuck in loop.

Change-Id: Ic7833dcb17154003565ccbece31a490ee9f43beb
CRs-Fixed: 3183232

core/hdd/src/wlan_hdd_main.c

@@ -19700,7 +19700,7 @@ static QDF_STATUS hdd_is_connection_in_progress_iterator(
 	uint8_t *sta_mac;
 	struct hdd_context *hdd_ctx;
 	mac_handle_t mac_handle;
-	struct hdd_station_info *sta_info;
+	struct hdd_station_info *sta_info, *tmp = NULL;
 	struct hdd_is_connection_in_progress_priv *context = ctx;
 
 	hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD);
@@ -19764,7 +19764,7 @@ static QDF_STATUS hdd_is_connection_in_progress_iterator(
 		}
 	} else if ((QDF_SAP_MODE == adapter->device_mode) ||
 			(QDF_P2P_GO_MODE == adapter->device_mode)) {
-		hdd_for_each_sta_ref(adapter->sta_info_list, sta_info,
+		hdd_for_each_sta_ref_safe(adapter->sta_info_list, sta_info, tmp,
 				     STA_INFO_CONNECTION_IN_PROGRESS_ITERATOR) {
 			if (sta_info->peer_state !=
 				OL_TXRX_PEER_STATE_CONN) {