config: enable CONFIG_DEBUG_INFO_BTF
We seem to have everything needed from the base config, but the CONFIG_DEBUG_INFO_REDUCED=y is then turning it off. It's a trade off between larger kernel vs something more useful for developers.
Tooling like retsnoop requires CONFIG_DEBUG_INFO_BTF=y and currently that is not supported on CI produced builds. retnoop has been very useful when trying to quickly isolate why an ioctl is returning some error (like when trying to reproduce a CI reported issue), often from deep within the driver or lower layers, all without needing to sprinkle prints and re-build the kernel many times.
Edited by Matthew Auld