esp32/mpconfigport.h: Enable MICROPY_PY_BUILTINS_POW3 option.
#define MICROPY_PY_BUILTINS_REVERSED (1)
#define MICROPY_PY_BUILTINS_NOTIMPLEMENTED (1)
#define MICROPY_PY_BUILTINS_MIN_MAX (1)
+#define MICROPY_PY_BUILTINS_POW3 (1)
#define MICROPY_PY_BUILTINS_HELP (1)
#define MICROPY_PY_BUILTINS_HELP_TEXT esp32_help_text
#define MICROPY_PY_BUILTINS_HELP_MODULES (1)
