So that it doesn't clash with the extmod version.
Also make the default for this enabled, so that most boards do not need to
configure it.
Signed-off-by: Damien George <damien@micropython.org>
This will be used by https://micropython.org/download/ to generate the
full listing of boards and firmware files.
Optionally supports a board.md for additional customisation of the
download page, as well as deploy.md for flashing instructions.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>