Correcting the enabling of the level controller in the audio processing simulator

BUG=

Review-Url: https://codereview.webrtc.org/2337133005
Cr-Original-Commit-Position: refs/heads/master@{#14247}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 2dc4cdeea7276241115bc3896d7079944c966837
1 file changed