esp32/mpconfigport.h: Enable MICROPY_PY_DELATTR_SETATTR.
To align with unix and stm32 ports.
// control over Python builtins
#define MICROPY_PY_FUNCTION_ATTRS (1)
#define MICROPY_PY_DESCRIPTORS (1)
+#define MICROPY_PY_DELATTR_SETATTR (1)
#define MICROPY_PY_STR_BYTES_CMP_WARN (1)
#define MICROPY_PY_BUILTINS_STR_UNICODE (1)
#define MICROPY_PY_BUILTINS_STR_CENTER (1)
