submodule: bump openthread from `da45d32` to `bcf9d80` (#408)
submodule: bump openthread from `da45d32` to `bcf9d80` (#408)

Bumps [openthread](https://github.com/openthread/openthread) from `da45d32` to `bcf9d80`.
- [Commits](https://github.com/openthread/openthread/compare/da45d327c7d2a740ba7891ddcd5c51ec0ccaec96...bcf9d8058ec1452ee574817604d1d33afcd290b1)

---
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-efr32,openthread/ot-efr32,openthread/ot-efr32