fbd47fc46c
The inclusion of `umachine` in the list of built-in modules is now done centrally in py/objmodule.c. Enabling MICROPY_PY_MACHINE will include this module. As part of this, all ports now have `umachine` as the core module name (previously some had only `machine` as the name). Signed-off-by: Damien George <damien@micropython.org>