Fix incorrect g_led_config generation (#18431)

lib/python/qmk/info.py

@@ -613,11 +613,15 @@ def _extract_led_config(info_data, keyboard):
     cols = info_data['matrix_size']['cols']
     rows = info_data['matrix_size']['rows']
 
-    # Assume what feature owns g_led_config
+    # Determine what feature owns g_led_config
+    features = info_data.get("features", {})
+    feature = None
+    if features.get("rgb_matrix", False):
         feature = "rgb_matrix"
-    if info_data.get("features", {}).get("led_matrix", False):
+    elif features.get("led_matrix", False):
         feature = "led_matrix"
 
+    if feature:
         # Process
         for file in find_keyboard_c(keyboard):
             try: