Fix pin mapping for thing plus 2040

GPIO 26 was mapped to GPIO 28

Author: dupontgu

ports/raspberrypi/boards/sparkfun_thing_plus_rp2040/pins.c

@@ -46,8 +46,8 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR_A1),  MP_ROM_PTR(&pin_GPIO27) },
     { MP_ROM_QSTR(MP_QSTR_D27), MP_ROM_PTR(&pin_GPIO27) },
 
-    { MP_ROM_QSTR(MP_QSTR_A0),  MP_ROM_PTR(&pin_GPIO28) },
-    { MP_ROM_QSTR(MP_QSTR_D26), MP_ROM_PTR(&pin_GPIO28) },
+    { MP_ROM_QSTR(MP_QSTR_A0),  MP_ROM_PTR(&pin_GPIO26) },
+    { MP_ROM_QSTR(MP_QSTR_D26), MP_ROM_PTR(&pin_GPIO26) },
 
     // SD Card
     { MP_ROM_QSTR(MP_QSTR_SD_SCK),  MP_ROM_PTR(&pin_GPIO14)},