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

keyboards/coseyfannitutti/mullet/config.h

@@ -17,7 +17,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #pragma once
 
-#define RGB_DI_PIN D5
 #define RGBLIGHT_EFFECT_BREATHING
 #define RGBLIGHT_EFFECT_RAINBOW_MOOD
 #define RGBLIGHT_EFFECT_RAINBOW_SWIRL

keyboards/coseyfannitutti/mullet/info.json

@@ -8,6 +8,9 @@
         "pid": "0x6969",
         "device_version": "0.0.1"
     },
+    "ws2812": {
+        "pin": "D5"
+    },
     "matrix_pins": {
         "cols": ["B2", "F4", "F5", "F6", "F7", "C7", "C6", "B6", "B5", "B4", "D7", "D6", "D4", "D2", "D3"],
         "rows": ["D0", "D1", "B0", "F0", "F1"]