submodule: bump third_party/openthread/repo from 84e80c6 to f6cee79
#1198
| Job | Run time |
|---|---|
| 8m 31s | |
| 8m 38s | |
| 17m 9s |
84e80c6 to f6cee79
#1198
| Job | Run time |
|---|---|
| 8m 31s | |
| 8m 38s | |
| 17m 9s |