rp2/boards/ARDUINO_NANO_RP2040_CONNECT: Increase flash storage space.

Fixes issue micropython#13512.

Signed-off-by: iabdalkader <i.abdalkader@gmail.com>

ports/rp2/boards/ARDUINO_NANO_RP2040_CONNECT/mpconfigboard.h

@@ -2,7 +2,7 @@
 
 // Board and hardware specific configuration
 #define MICROPY_HW_BOARD_NAME           "Arduino Nano RP2040 Connect"
-#define MICROPY_HW_FLASH_STORAGE_BYTES  (8 * 1024 * 1024)
+#define MICROPY_HW_FLASH_STORAGE_BYTES  (14 * 1024 * 1024)
 
 // Network config
 #define MICROPY_PY_NETWORK_HOSTNAME_DEFAULT "mpy-nano-rp2040-connect"