Migrate rgblight.pin and RGB_DI_PIN to ws2812.pin (#20303)

keyboards/handwired/uthol/rev2/config.h

@@ -18,6 +18,5 @@
 #pragma once
 
 //RGB Stuff
-#define RGB_DI_PIN E6
 #define RGBLED_NUM 39
 #define RGBLIGHT_DEFAULT_HUE 201

keyboards/handwired/uthol/rev2/info.json

@@ -3,6 +3,9 @@
     "usb": {
         "device_version": "0.0.2"
     },
+    "ws2812": {
+        "pin": "E6"
+    },
     "matrix_pins": {
         "cols": ["D3", "D2", "D1", "D0", "D4", "C6", "D7", "B5", "B4", "B6", "B2", "B3"],
         "rows": ["B1", "F7", "F6", "F5", "F4"]

keyboards/handwired/uthol/rev3/config.h

@@ -35,7 +35,6 @@
 #define PERMISSIVE_HOLD
 
 // RGB Stuff
-#define RGB_DI_PIN B0
 #define RGBLED_NUM 39
 #define RGBLIGHT_EFFECT_BREATHING
 #define RGBLIGHT_EFFECT_RAINBOW_MOOD

keyboards/handwired/uthol/rev3/info.json

@@ -3,6 +3,9 @@
     "usb": {
         "device_version": "0.0.3"
     },
+    "ws2812": {
+        "pin": "B0"
+    },
     "matrix_pins": {
         "cols": ["B1", "B10", "B9", "B8", "B5", "B4", "B3", "A15", "B15", "B14", "B13", "B12"],
         "rows": ["A4", "A3", "A2", "A1", "A0"]