rp2/boards/ADAFRUIT_FEATHER_RP2040: Configure I2C/SPI default pins.

ports/rp2/boards/ADAFRUIT_FEATHER_RP2040/mpconfigboard.h

@@ -1,6 +1,20 @@
-// Board and hardware specific configuration
-#define MICROPY_HW_BOARD_NAME                   "Adafruit Feather RP2040"
-#define MICROPY_HW_FLASH_STORAGE_BYTES          (3072 * 1024)
+// https://www.adafruit.com/product/4884
+// https://learn.adafruit.com/adafruit-feather-rp2040-pico/pinouts
+
+#define MICROPY_HW_BOARD_NAME          "Adafruit Feather RP2040"
+#define MICROPY_HW_FLASH_STORAGE_BYTES (7 * 1024 * 1024)
 
 #define MICROPY_HW_USB_VID (0x239A)
 #define MICROPY_HW_USB_PID (0x80F2)
+
+// STEMMA QT / Qwiic on I2C1
+#define MICROPY_HW_I2C1_SCL  (3)
+#define MICROPY_HW_I2C1_SDA  (2)
+
+#define MICROPY_HW_SPI0_SCK  (18)
+#define MICROPY_HW_SPI0_MOSI (19)
+#define MICROPY_HW_SPI0_MISO (20)
+
+// NeoPixel GPIO16, power not toggleable
+
+// Red user LED GPIO13