[build] disable Commissioner by default in Android.mk (#7443)
[build] disable Commissioner by default in Android.mk (#7443)


openthread/openthread,jwhui/openthread,openthread/openthread,jwhui/openthread,srickardti/openthread,jwhui/openthread,abtink/openthread,abtink/openthread,abtink/openthread,jwhui/openthread,openthread/openthread,openthread/openthread,abtink/openthread,srickardti/openthread,srickardti/openthread,srickardti/openthread