submodule: bump openthread from `a24b67e` to `89d0d9e` (#51)
submodule: bump openthread from `a24b67e` to `89d0d9e` (#51)

Bumps [openthread](https://github.com/openthread/openthread) from `a24b67e` to `89d0d9e`.
- [Commits](https://github.com/openthread/openthread/compare/a24b67ef30af46496266a66fd5928ebb4e6955f0...89d0d9ececa9d8df6ecf9e2680c0298d57960682)

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

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