add feather_nrf52833_pivot board boot loader

[kbladewht]

Checklist

By completing this PR sufficiently, you help us to review this Pull Request quicker and also help improve the quality of Release Notes

• Please provide specific title of the PR describing the change
• If you are adding an new boards, please make sure
  • Provide link to your allocated VID/PID if applicable
  • UF2_BOARD_ID in your board.h follow correct format from uf2 specs

This checklist items that are not applicable to your PR can be deleted.

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Description of Change

Please describe your proposed Pull Request and it's impact.

[hathach]

Adafruit currently does not make 833 boards, please update the info accordingly, also plesae elaborate how you got your vid/pid

[kbladewht]

Adafruit currently does not make 833 boards, please update the info accordingly, also plesae elaborate how you got your vid/pid

Hi Hathach

Sorry make the confusion here.

I am a keyboard maker as DIY here.

I used this boot loader as my kb receiver.

So far I used vid/pid by slightly changed existing board. Should I change to other name?

I just reedit for boot loader name part, if you may can u help review？

Thanks your time if any further issues, i will fix it as soon as possible definitely!

[hathach]

Each board must has a unique vid/pid. PID must be allocated by the company that owes that VID, please try to ask a company to allocate one for you and put the ref/link here

[hathach]

mark this as draft, feel free to convert it to ready when you get vid/pid allocated