submodule: bump openthread from `adf4e84` to `5117c39` (#212)
submodule: bump openthread from `adf4e84` to `5117c39` (#212)

Bumps [openthread](https://github.com/openthread/openthread) from `adf4e84` to `5117c39`.
- [Commits](https://github.com/openthread/openthread/compare/adf4e84caf71b63f3026640fdd31055daf1e27e8...5117c39f979db60a778a2757ade7524267123e3c)

---
updated-dependencies:
- dependency-name: openthread
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
openthread/ot-kw41z,openthread/ot-kw41z