Correct usage of get_config

Author: Jimmy Brisson

tools/get_config.py

@@ -56,7 +56,7 @@
     options.prefix = options.prefix or [""]
 
     try:
-        params, macros, features = get_config(
+        params, macros, features, _ = get_config(
             options.source_dir,
             target,
             options.tool[0] if options.tool else None,

tools/test_api.py

@@ -2245,7 +2245,7 @@ def build_tests(tests, base_source_paths, build_path, target, toolchain_name,
     else:
         target_name = target
         target = TARGET_MAP[target_name]
-    cfg, _, _ = get_config(base_source_paths, target, app_config=app_config)
+    cfg, _, _, _ = get_config(base_source_paths, target, app_config=app_config)
 
     baud_rate = 9600
     if 'platform.stdio-baud-rate' in cfg: