batman-adv: Prefix remaining function like macros with batadv_

Signed-off-by: Sven Eckelmann <sven@narfation.org>
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index efe7519..f43eb57 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -197,7 +197,7 @@
 	if (atomic_read(&bat_priv->gw_mode) != GW_MODE_CLIENT)
 		goto out;
 
-	if (!atomic_dec_not_zero(&bat_priv->gw_reselect))
+	if (!batadv_atomic_dec_not_zero(&bat_priv->gw_reselect))
 		goto out;
 
 	curr_gw = batadv_gw_get_selected_gw_node(bat_priv);