Move matrix config to info.json, part 3 (#19991)

Co-authored-by: Nick Brassel <nick@tzarc.org>

keyboards/tkw/grandiceps/info.json

@@ -6,13 +6,24 @@
         "vid": "0xFEED",
         "pid": "0x7812"
     },
+    "matrix_pins": {
+        "cols": ["B0", "A7", "A3", "A5", "A4", "A2"],
+        "rows": ["B12", "A6", "B13", "B9", "B8"]
+    },
+    "diode_direction": "COL2ROW",
     "encoder": {
         "rotary": [
             {"pin_a": "B14", "pin_b": "B15"}
         ]
     },
     "split": {
-        "soft_serial_pin": "A15"
+        "soft_serial_pin": "A15",
+        "matrix_pins": {
+            "right": {
+                "cols": ["B0", "A7", "A3", "A5", "A4", "A2"],
+                "rows": ["B12", "A6", "B13", "B9", "B8"]
+            }
+        }
     },
     "processor": "STM32F411",
     "bootloader": "stm32-dfu",