esp32s2: Add support for `make monitor`
esp32s2: Add support for `make monitor`

`idf.py monitor` connects to the debug UART and shows the messages.  In
contrast to a traditional terminal program, it also has the limited
ability to transform hex addresses into file & line number information,
especially for debug builds.

This requires the elf file be copied to a specific place.

adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython