submodule: bump openthread from `11a24d1` to `f5acfb2` (#382)
submodule: bump openthread from `11a24d1` to `f5acfb2` (#382)

Bumps [openthread](https://github.com/openthread/openthread) from `11a24d1` to `f5acfb2`.
- [Commits](https://github.com/openthread/openthread/compare/11a24d111f16a60a241ea0c4753e7bd28a5c4c93...f5acfb2dac724ad65185ef0915ad921a2aef4862)

---
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-samr21,openthread/ot-samr21