feat(pycardium): Enable input() builtin

Enable the input() builtin which allows reading from the serial console.

Signed-off-by: Rahix <rahix@rahix.de>

pycardium/mpconfigport.h

@@ -31,6 +31,7 @@ int mp_hal_trng_read_int(void);
 #define MICROPY_PY_ALL_SPECIAL_METHODS      (1)
 #define MICROPY_PY_BUILTINS_HELP            (1)
 #define MICROPY_PY_BUILTINS_HELP_MODULES    (1)
+#define MICROPY_PY_BUILTINS_INPUT           (1)
 #define MICROPY_PY_UBINASCII                (1)
 #define MICROPY_PY_UHEAPQ                   (1)
 #define MICROPY_PY_UJSON                    (1)