Migrate build target markers to keyboard.json - YZ (#23421)

keyboards/yampad/keyboard.json

@@ -8,6 +8,12 @@
         "pid": "0x8369",
         "device_version": "0.0.1"
     },
+    "features": {
+        "bootmagic": true,
+        "nkro": true,
+        "oled": true,
+        "rgblight": true
+    },
     "rgblight": {
         "led_count": 9,
         "animations": {
@@ -27,6 +33,7 @@
         "pin": "F4"
     },
     "build": {
+        "lto": true,
         "debounce_type": "sym_eager_pk"
     },
     "matrix_pins": {

keyboards/yampad/rules.mk

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