Update contrib.
2 _ZN17CAudioGainControl4NewLEv @ 1 NONAME
3 _ZN17CAudioGainControl9SetHelperER11MGainHelper @ 2 NONAME
4 _ZN17CAudioGainControl24IssueGainChangedCallBackEi @ 3 NONAME
5 _ZN17CAudioGainControl13ConfigureRampE4TUidRK25TTimeIntervalMicroSeconds @ 4 NONAME