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

keyboards/handwired/uthol/rev1/keyboard.json

@@ -3,6 +3,17 @@
     "usb": {
         "device_version": "0.0.1"
     },
+    "build": {
+        "lto": true
+    },
+    "features": {
+        "bootmagic": true,
+        "command": false,
+        "console": false,
+        "extrakey": true,
+        "mousekey": false,
+        "nkro": true
+    },
     "matrix_pins": {
         "cols": ["D3", "B6", "B2", "B3", "B1", "F7", "F6", "F5", "F4", "B5", "B4", "D2"],
         "rows": ["D1", "D0", "D4", "C6", "D7"]

keyboards/handwired/uthol/rev1/rules.mk

@@ -1,7 +0,0 @@
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = yes
-EXTRAKEY_ENABLE = yes
-NKRO_ENABLE = yes
-LTO_ENABLE = yes

keyboards/handwired/uthol/rev2/keyboard.json

@@ -12,6 +12,18 @@
     "ws2812": {
         "pin": "E6"
     },
+    "build": {
+        "lto": true
+    },
+    "features": {
+        "bootmagic": true,
+        "command": false,
+        "console": false,
+        "extrakey": true,
+        "mousekey": false,
+        "nkro": true,
+        "rgblight": true
+    },
     "matrix_pins": {
         "cols": ["D3", "D2", "D1", "D0", "D4", "C6", "D7", "B5", "B4", "B6", "B2", "B3"],
         "rows": ["B1", "F7", "F6", "F5", "F4"]

keyboards/handwired/uthol/rev2/rules.mk

@@ -1,8 +0,0 @@
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = yes
-EXTRAKEY_ENABLE = yes
-NKRO_ENABLE = yes
-LTO_ENABLE = yes
-RGBLIGHT_ENABLE = yes