Move encoder config to data driven (#19923)

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

keyboards/mixi/config.h

@@ -1,8 +1,5 @@
 #pragma once
 
-#define ENCODERS_PAD_A { D7, B1 }
-#define ENCODERS_PAD_B { E6, B3 }
-
 /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
 #define LOCKING_SUPPORT_ENABLE
 

keyboards/mixi/info.json

@@ -8,6 +8,12 @@
         "pid": "0x4D49",
         "device_version": "0.0.1"
     },
+    "encoder": {
+        "rotary": [
+            {"pin_a": "D7", "pin_b": "E6"},
+            {"pin_a": "B1", "pin_b": "B3"}
+        ]
+    },
     "processor": "atmega32u4",
     "bootloader": "caterina",
     "matrix_pins": {