[chopstx] Add support for Blue Pill Plus board

[NIIBE Yutaka]

Alexandre Esse <alexandre.esse.dev at gmail.com> wrote:
> Here is a short message to notify the mailing list that I proposed a merge
> request on chopstx:
> https://salsa.debian.org/gnuk-team/chopstx/chopstx/-/merge_requests/1
>
> This is the first step to add gnuk support for Blue Pill Plus boards
> <https://github.com/WeActStudio/BluePill-Plus/>.
>
> Not sure if this is the way to contribute: looking forward to your feedback.

Thank you, merged.

Perhaps, it was not good to just push the "Merge" button on the web.  It
were good to cherry pick your change to make history straight.
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