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

keyboards/ergoslab/rev1/config.h

@@ -17,9 +17,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #pragma once
 
-/* ws2812 RGB LED */
-#define RGB_DI_PIN D3
-
 #define RGBLED_NUM 2    // Number of LEDs
 // FIXME this following line should enable our layer status LEDs to work on both
 // sides without need to wire them into a chain. It doesn't though. Uncommenting

keyboards/ergoslab/rev1/info.json

@@ -16,6 +16,9 @@
   "split": {
     "soft_serial_pin": "D2"
   },
+  "ws2812": {
+    "pin": "D3"
+  },
   "processor": "atmega32u4",
   "bootloader": "caterina",
   "layouts": {