android-visualizer: initial changes for CM

Change-Id: I78696717a9b2b70850c1246a7f0a45e700edaf7c
Signed-off-by: Roman Birg <roman@cyngn.com>
audio-visualizer: tweak visualizer bar alpha

Change-Id: Ie2099ff2d3d6abe9ce52235e4be24628f9c7c302
Signed-off-by: Roman Birg <roman@cyngn.com>