Docs (for Asterix B2Bv2 board): add FAQ for troubleshooting steps

[MrXANA91]

After some troubleshooting with the Asterix B2Bv2 board (thanks @jplexer for the help), here is a PR that adds those steps into the PebbleOS docs.

[jplexer]

one small comment but other than that lgtm

[gmarull]

I'd just add some default steps as many users will likely face that. Doesn't pico probe have a page where this is also described, so we can just point people there?

I definitely had to follow less steps (or at least simpler)

[MrXANA91]

I'd just add some default steps as many users will likely face that. Doesn't pico probe have a page where this is also described, so we can just point people there?

I definitely had to follow less steps (or at least simpler)

I had to tweak the file provided by picotool to match the idProduct of the board (000c) that was not present by default. Without this tweak, I couldn't flash the board without being root.

Do you recall the steps you had to go through?

[MrXANA91]

Something that might be worth noting: I am using Linux Mint 22.2.
It is based on Ubuntu 24.04 but it might have enough differences to complicate things compared to Ubuntu.