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

keyboards/yosino58/rev1/keyboard.json

@@ -14,6 +14,7 @@
     },
     "diode_direction": "COL2ROW",
     "split": {
+        "enabled": true,
         "soft_serial_pin": "D2"
     },
     "rgblight": {

keyboards/yosino58/rev1/rules.mk

@@ -1,13 +0,0 @@
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = no        # Mouse keys
-EXTRAKEY_ENABLE = no        # 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
-AUDIO_ENABLE = no           # Audio output
-RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight. 
-SPLIT_KEYBOARD = yes