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

keyboards/barleycorn_smd/config.h

@@ -38,7 +38,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MATRIX_COL_PINS { D4, D6, D7, B4, B5, B6, C6, C7, D5, D5, D5, D5, D5, D5, D5, D5, D5, D5 }
 #define PORT_EXPANDER_ADDRESS 0x20
 
-#define RGB_DI_PIN E6
 #define RGBLED_NUM 15
 #define RGBLIGHT_EFFECT_BREATHING
 #define RGBLIGHT_EFFECT_RAINBOW_MOOD

keyboards/barleycorn_smd/info.json

@@ -11,6 +11,9 @@
         "caps_lock": "B2",
         "num_lock": "B3"
     },
+    "ws2812": {
+        "pin": "E6"
+    },
     "processor": "atmega32u4",
     "bootloader": "atmel-dfu",
     "layouts": {