unix/mpconfigport_dev.h: Enable MICROPY_PY_CLASS_BASES.
unix/mpconfigport_dev.h: Enable MICROPY_PY_CLASS_BASES.

Change-Id: I11d739d88ec1c24c18703753743e695b20e9ba93

pfalcon/micropython,pfalcon/micropython,pfalcon/micropython,pfalcon/micropython,pfalcon/micropython