submodule: bump openthread from `e71dc7b` to `fbba1e4` (#55)
submodule: bump openthread from `e71dc7b` to `fbba1e4` (#55)

Bumps [openthread](https://github.com/openthread/openthread) from `e71dc7b` to `fbba1e4`.
- [Commits](https://github.com/openthread/openthread/compare/e71dc7bfc1c17f08b2bace3e4cdb6d1a1f0821b0...fbba1e4ede73e4995f91e0a1ff035fd7def9f072)

---
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>
Infineon/ot-ifx-release,openthread/ot-ifx,Infineon/ot-ifx-release,openthread/ot-ifx,openthread/ot-ifx,Infineon/ot-ifx-release