submodule: bump openthread from 6751122 to 3f99b11 (#760)
#1595
| Job | Run time |
|---|---|
| 23m 53s | |
| 23m 24s | |
| 47m 17s |
6751122 to 3f99b11 (#760)
#1595
| Job | Run time |
|---|---|
| 23m 53s | |
| 23m 24s | |
| 47m 17s |