support config as an alias of keyboard_overrides

data/schemas/keymap.jsonschema

@@ -5,6 +5,7 @@
     "type": "object",
     "properties": {
         "author": {"type": "string"},
+        "config": {"$ref": "qmk.keyboard.v1"},
         "keyboard": {"$ref": "qmk.definitions.v1#/text_identifier"},
         "keyboard_overrides": {"$ref": "qmk.keyboard.v1"},
         "keymap": {"$ref": "qmk.definitions.v1#/text_identifier"},

lib/python/qmk/info.py

@@ -123,6 +123,9 @@ def get_keyboard_overrides(keyboard, keymap=None):
         if 'keyboard_overrides' in keymap_json:
             return keymap_json['keyboard_overrides']
 
+        if 'config' in keymap_json:
+            return keymap_json['config']
+
 
 def _extract_features(info_data, rules):
     """Find all the features enabled in rules.mk.