See https://github.com/im-tomu/fomu-workshop/pull/410/checks?check_run_id=1616270863#step:10:5267. `add_dfu_suffix` has been removed from the latest litex_boards.
See https://github.com/im-tomu/fomu-workshop/pull/410/checks?check_run_id=1616270863#step:10:5267.
add_dfu_suffixhas been removed from the latest litex_boards.