boards.txt.py: add Wemos ESP-WROOM-02 board

[rotulet]

Get fixes from #6551 (comment)

[mcspr]

Is it really a wemos board?
Shouldn't this be just esp wroom-02?

[rotulet]

@mcspr good question! I have got the "official" Wemos logo on it. In many places on internet I found the same board branded Wemos but also clones. But I did not find any references on the Wemos web site!

[rotulet]

@AronHetLam Sorry but I do not understand what is the error? Can you explain please?

[AronHetLam]

@rotulet, I'm not sure what exactly you are unsure about, but I'll explain the problem i had.
When I ran the script for the ESP-wroom-02 board i got an exception because there was no entry in the macros dict for flashfreq_26. Adding it, as you've done one the fix you pushed, fixed the issue for me, and i was able to generate a boards.txt with the entries needed for ESP-wroom-02.
I ran the scrip as standalone, and didn't look to deep into how it's all put together. As you can see in the issue I referenced this issue from, I had someone with a ESP-wroom-02 board that couldn't get my code compiled correctly.

[mcspr]

Simply run the boards script and commit changes to boards.txt and documentation.

Our Check expects that we have the same filesystem contents before and after running it
https://github.com/esp8266/Arduino/actions/runs/3099983428/jobs/5202829401
(unfold the crossed out section, it shows a git-diff output of what boards.txt.py generated and what changed in the repo)

[rotulet]

Sorry for the delay...

Thanks @mcspr for the hint!

@AronHetLam I updated the board.txt file and rebased on master.