t0lte: increase speakerphone volume and allow voice index to be different for output devices

Change-Id: Idc4ad0a8fa9e252e72d0673ef674f4a7c1d4de42
t0lte: adjust capture period size and count

This fixes google sound search, camcorder audio, and possibly other input streams

Change-Id: Ifdf7aafa31d60ae64631c1be5ce1d564dd1e6ba6