melopero_shake_rp2040: Add missing BOARD_DICT_STANDARD_ITEMS

Author: prplz

ports/raspberrypi/boards/melopero_shake_rp2040/pins.c

@@ -1,6 +1,8 @@
 #include "shared-bindings/board/__init__.h"
 
 STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
+    CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
+
     { MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_GPIO26) },
     { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_GPIO27) },
     { MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_GPIO28) },