core/thread_flags: collect predefined flags

[axelixy]

Contribution description

This centralizes RIOT's predefined thread flag definitions in
core/include/thread_flags.h.

The PR moves the thread flag definitions listed in #20867 out of individual
modules and test applications, while preserving their existing bit values.
THREAD_FLAG_PREDEFINED_MASK now also accounts for module-specific predefined
flags when the corresponding module is selected.

The updated mask includes flags used by event queues, USBUS, POSIX select,
Kinetis I2C, KW41ZRF, LVGL, lwIP netdev, and the listed test applications.

Testing procedure

I checked the diff locally with:

git diff --check

Issues/PRs references

Fixes #20867

[github-actions]

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[axelixy]

It looks like the tools-build failure is caused by a Docker pull failure. Could someone re-run that job?

[Enoch247]

It looks like this PR is missing the Declaration of AI-Tools / LLMs usage.

[Enoch247]

Some of these flags should not be centralized. Particularly the ones used in test apps, but also ones that are private to a module. There was some discussion about this on #riot-os:matrix.org. There is a link in issue #20867 to that discussion.

[Enoch247]

I don't believe this line is needed. I believe the only two users of POSIX_SELECT_THREAD_FLAG already include thread_flags.h, correct?

[riot-ci]

Murdock results

✔️ PASSED

657bb66 core/thread_flags: collect predefined flags

Success	Failures	Total	Runtime
11124	0	11124	13m:39s

Artifacts

• Documentation preview