submodule: bump openthread from `bce7c1a` to `5d50088` (#337)
submodule: bump openthread from `bce7c1a` to `5d50088` (#337)

Bumps [openthread](https://github.com/openthread/openthread) from `bce7c1a` to `5d50088`.
- [Commits](https://github.com/openthread/openthread/compare/bce7c1ae1fb48f576ab374fd29c584d794b00595...5d50088da92fdb191ca2ee67a7720cadf6128e36)

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

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
openthread/ot-kw41z,openthread/ot-kw41z