Migrate features and LTO from rules.mk to data driven (#23302)

keyboards/preonic/rev2/keyboard.json

@@ -6,6 +6,19 @@
         "pid": "0x67F3",
         "device_version": "0.0.2"
     },
+    "build": {
+        "lto": true
+    },
+    "features": {
+        "audio": true,
+        "backlight": true,
+        "bootmagic": true,
+        "command": false,
+        "console": true,
+        "extrakey": true,
+        "mousekey": false,
+        "nkro": false
+    },
     "matrix_pins": {
         "cols": ["F1", "F0", "B0", "C7", "F4", "F5", "F6", "F7", "D4", "D6", "B4", "D7"],
         "rows": ["D2", "D5", "B5", "B6", "D3"]

keyboards/preonic/rev2/rules.mk

@@ -1,14 +0,0 @@
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = no        # Mouse keys
-EXTRAKEY_ENABLE = yes       # Audio control and System control
-CONSOLE_ENABLE = yes        # Console for debug
-COMMAND_ENABLE = no         # Commands for debug and configuration
-NKRO_ENABLE = no            # Enable N-Key Rollover
-BACKLIGHT_ENABLE = yes      # Enable keyboard backlight functionality
-AUDIO_ENABLE = yes          # Audio output
-RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.
-
-LTO_ENABLE = yes