test: fix old hocon API calls

apps/emqx/test/emqx_common_test_helpers.erl

@@ -199,7 +199,7 @@ read_schema_configs(Schema, ConfigFile) ->
 
 generate_config(SchemaModule, ConfigFile) when is_atom(SchemaModule) ->
     {ok, Conf0} = hocon:load(ConfigFile, #{format => richmap}),
-    hocon_schema:generate(SchemaModule, Conf0).
+    hocon_tconf:generate(SchemaModule, Conf0).
 
 -spec(stop_apps(list()) -> ok).
 stop_apps(Apps) ->

apps/emqx/test/emqx_listeners_SUITE.erl

@@ -138,7 +138,7 @@ mustache_vars() ->
 generate_config() ->
     ConfFile = render_config_file(),
     {ok, Conf} = hocon:load(ConfFile, #{format => richmap}),
-    hocon_schema:generate(emqx_schema, Conf).
+    hocon_tconf:generate(emqx_schema, Conf).
 
 set_app_env({App, Lists}) ->
     lists:foreach(fun({authz_file, _Var}) ->