submodule: bump openthread from `442b7e8` to `b69aac4` (#195)
submodule: bump openthread from `442b7e8` to `b69aac4` (#195)

Bumps [openthread](https://github.com/openthread/openthread) from `442b7e8` to `b69aac4`.
- [Commits](https://github.com/openthread/openthread/compare/442b7e82f67617cf754ed905d8e1dec9e1f9de80...b69aac4aa85b410dbe54950741df39b306458ba2)

---
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-qorvo,openthread/ot-qorvo,openthread/ot-qorvo