Move SOFT_SERIAL_PIN to data driven (#19863)

keyboards/biacco42/ergo42/rev1/config.h

@@ -28,8 +28,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* COL2ROW, ROW2COL*/
 #define DIODE_DIRECTION COL2ROW
 
-#define SOFT_SERIAL_PIN D0
-
 /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
 #define LOCKING_SUPPORT_ENABLE
 /* Locking resynchronize hack */

keyboards/biacco42/ergo42/rev1/info.json

@@ -8,6 +8,9 @@
     "pid": "0x0042",
     "device_version": "1.0.0"
   },
+  "split": {
+        "soft_serial_pin": "D0"
+    },
   "processor": "atmega32u4",
   "bootloader": "caterina",
   "layouts": {