Networked voice starts before local player is registered

The voice engine starts before it is ready. FOnlineVoiceImpl::StartNetworkedVoice is called prior to VoiceEngine->RegisterLocalTalker() in FOnlineVoiceImpl::RegisterLocalTalker(). This leads to the test for IsOwningUser(LocalUserEnum) in FVoiceEngineImpl to fail.

Regression?: No
This occurred in 4.18

1. Create a new project
2. Add the following to the DefaultEngine.ini

    [OnlineSubsystem]
   DefaultPlatformService=Null
   bHasVoiceEnabled=true
   
   [Voice]
   bEnabled=true 

3. Add the following to DefaultGame.ini

    [/Script/Engine.GameSession]
   bRequiresPushToTalk=false 

4. Open the project
5. Press Play
6. Check the output log
   Result: LogVoiceEngine: Error: StartLocalVoiceProcessing(): Device is currently owned by another user
   Expected: No errors related to Voice