Add mikoto board

[mrninhvn]

From https://github.com/zhiayang/mikoto

[hathach]

thank you for your PR. Could you confirm the VID/PID as review comment.

[hathach]

could you confirm this is the VID/PID assigned specifically for this board.

[mrninhvn]

could you confirm this is the VID/PID assigned specifically for this board.

7A79 is "zy" (zhiayang), I haven't seen this duplicated anywhere, but do you have any suggestions to be sure? Thank you.

[hathach]

you cannot randomly pick an vid/pid. These ids are uniquely assigned by vendor for each product and this repo only accept one with valid vid/pid. You should try to apply for an vid/pid from other donor.

[mrninhvn]

you cannot randomly pick an vid/pid. These ids are uniquely assigned by vendor for each product and this repo only accept one with valid vid/pid. You should try to apply for an vid/pid from other donor.

hmm, is there an easy way for me to get one? thank you.

[hathach]

you could apply for one https://pid.codes/

[zhiayang]

I've got a PID now: 1209 / 7a01. pidcodes/pidcodes.github.com#701

[mrninhvn]

I've got a PID now: 1209 / 7a01. pidcodes/pidcodes.github.com#701

Thanks @zhiayang , I changed that.

[hathach]

everything look good, only a minor change request to correct the board id format

[hathach]

I am not picky but board id must follow uf2 spec https://github.com/microsoft/uf2#files-exposed-by-bootloaders . You need to add the board revision as well

The Board-ID field is machine-readable and consists of a number of dash-separated tokens. The first token is the CPU type, second is the board type, and third is the board revision. More tokens can be also added. 

[mrninhvn]

Thank you, I changed that.

[hathach]

look good, it is ready to merge, though for board binary to be part of the release, the board need to be added to the ci as well https://github.com/adafruit/Adafruit_nRF52_Bootloader/blob/master/.github/workflows/githubci.yml#L27

[hathach]

perfect now