submodule: bump openthread from `3fdaaab` to `e04c8e3` (#199)
submodule: bump openthread from `3fdaaab` to `e04c8e3` (#199)

Bumps [openthread](https://github.com/openthread/openthread) from `3fdaaab` to `e04c8e3`.
- [Commits](https://github.com/openthread/openthread/compare/3fdaaab07c2dc3d322d0b4f8a31c812330be6e3a...e04c8e330773cf3fcc1acd00b18e7ea355e134ad)

---
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-cc2538,openthread/ot-cc2538