[build] update openthread cmake options (#1284)
[build] update openthread cmake options (#1284)

This commit update openthread cmake options:
- Enable `OT_COMMISSIONER` by default, but remove `FORCE`
- Enable `OPENTHREAD_CONFIG_TMF_PROXY_DUA_ENABLE`
- Enable `OPENTHREAD_CONFIG_TMF_PROXY_MLR_ENABLE`
openthread/ot-br-posix,openthread/borderrouter,openthread/borderrouter,openthread/borderrouter,openthread/ot-br-posix,openthread/ot-br-posix,openthread/ot-br-posix,openthread/ot-br-posix,openthread/borderrouter,openthread/borderrouter,openthread/borderrouter,openthread/ot-br-posix