feat(hardware): add Raspberry Pi Pico W and Pico 2 W support with WiF…

[hippo5329]

Summary

Adds full native support for Raspberry Pi Pico W (rpipicow / RP2040) and Pico 2 W (rpipico2w / RP2350) with Infineon CYW43439 wireless networking:

• Deterministic High-Speed USB Serial Transport: Runs micro-ROS over native USB CDC (/dev/ttyACM0) for ultra-low latency odometry and velocity control.
• Concurrent Background WiFi OTA & Syslog: Connects to WiFi in the background, enabling wireless ArduinoOTA firmware flashing and remote Syslog telemetry (SYSLOG_SERVER) without impacting micro-ROS transport determinism.
• Environments added: pico2w, pico2w_wifi, picow, picow_wifi.

Verification

• 100% build pass across all 6 RP2040/RP2350 environments on compute node a20 (27s).
• Clean single-purpose commit (3d4f1d9) rebased on top of jazzy.

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[PaulBouchier]

There's a fix needed to make OTA work, and I've requested some improvements. Thank you very much for this great contribution! I am excited to announce your work on the linorobot email list when we get the PR merged.

[PaulBouchier]

Thank you very much for doing the changes to all the other config files - I appreciate it. Unfortunately the change triggered a compile warning in several of the newly modified config files, owing to a duplicate definition. I've flagged them in the review. One more round and I think we'll be good! 😃

[PaulBouchier]

All the key functionality still worked - syslog & OTA - on the pico

[hippo5329]

Hold. We can try refactor these headers to reduce duplication. esp32_wifi and gendrv_wifi could be removed. pico and pico2 could be unified and keep only one?

[hippo5329]

customized config file can be generated easily with web ui. what we need is CI coverage to verify builds.

[PaulBouchier]

Thank you for your quick and excellent work on creating support for the picow/2w for wifi OTA & syslog. It all works well and builds clean. Let's hold off on further optimizations such as unifying gendrv/(_wifi) etc - we've already gone a long way and it's time to merge this PR and announce it. I also tested that micro-ros over wifi works (even though it is not recommended). It's time to move on to the next PR.