Clean up APA102 config and add DD mapping (#20159)

data/mappings/info_config.hjson

@@ -10,6 +10,9 @@
     // deprecated: Default `false`. Set to `true` to turn on warning when a value exists
     // invalid: Default `false`. Set to `true` to generate errors when a value exists
     // replace_with: use with a key marked deprecated or invalid to designate a replacement
+    "APA102_DI_PIN": {"info_key": "apa102.data_pin"},
+    "APA102_CI_PIN": {"info_key": "apa102.clock_pin"},
+    "APA102_DEFAULT_BRIGHTNESS": {"info_key": "apa102.default_brightness", "value_type": "int"},
     "AUDIO_VOICES": {"info_key": "audio.voices", "value_type": "bool"},
     "BACKLIGHT_BREATHING": {"info_key": "backlight.breathing", "value_type": "bool"},
     "BREATHING_PERIOD": {"info_key": "backlight.breathing_period", "value_type": "int"},

data/schemas/keyboard.jsonschema

@@ -96,6 +96,19 @@
                 "unknown"
             ]
         },
+        "apa102": {
+            "type": "object",
+            "additionalProperties": false,
+            "properties": {
+                "data_pin": {"$ref": "qmk.definitions.v1#/mcu_pin"},
+                "clock_pin": {"$ref": "qmk.definitions.v1#/mcu_pin"},
+                "default_brightness": {
+                    "type": "integer",
+                    "minimum": 0,
+                    "maximum": 31
+                }
+            }
+        },
         "audio": {
             "type": "object",
             "additionalProperties": false,