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

keyboards/westm/westmergo/config.h

@@ -26,8 +26,6 @@
 #define RGBLIGHT_EFFECT_RGB_TEST
 #define RGBLIGHT_EFFECT_ALTERNATING
 #define RGBLIGHT_EFFECT_TWINKLE
-// The pin connected to the data pin of the LEDs
-#define RGB_DI_PIN A8
 #define RGBLED_NUM 16
 
 /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */

keyboards/westm/westmergo/info.json

@@ -8,6 +8,9 @@
         "pid": "0x0201",
         "device_version": "0.0.1"
     },
+    "ws2812": {
+        "pin": "A8"
+    },
     "matrix_pins": {
         "cols": ["B15", "B14", "B13", "B12", "B11", "B10", "B2", "B1", "B8", "B7", "B6", "B5", "B4", "B3", "A15", "A14"],
         "rows": ["A13", "B9", "F1", "A10", "A9"]