This CL adds the ability to toggle the AGC2 adaptive digital mode in audioproc_f Bug: webrtc:5298 Change-Id: If1567d8c87f88992dff89253edb293a56cee0a73 Reviewed-on: https://webrtc-review.googlesource.com/c/103361 Reviewed-by: Alex Loiko <aleloi@webrtc.org> Commit-Queue: Per Åhgren <peah@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24954}