Miscellaneous keyboard.json migrations (#23378)

keyboards/splitty/rev1/keyboard.json

@@ -8,6 +8,13 @@
     "pid": "0x6052",
     "device_version": "0.0.1"
   },
+  "features": {
+    "mousekey": true,
+    "extrakey": true
+  },
+  "split": {
+    "enabled": true
+  },
   "matrix_pins": {
     "cols": ["B0", "B1", "B2", "B3", "B4", "B5", "B6"],
     "rows": ["F0", "F1", "D4", "D5", "D6"]

keyboards/splitty/rules.mk

@@ -1,16 +1 @@
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = yes       # Mouse keys
-EXTRAKEY_ENABLE = yes       # Audio control and System control
-CONSOLE_ENABLE = no         # Console for debug
-COMMAND_ENABLE = no         # Commands for debug and configuration
-NKRO_ENABLE = no            # Enable N-Key Rollover
-BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
-RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
-AUDIO_ENABLE = no           # Audio output
-
-SPLIT_KEYBOARD = yes
-
 DEFAULT_FOLDER = splitty/rev1