d2-common : lower camcorder audio volume

Lowering the setting to 87% puts the volume slightly louder then TW.
83-85% is on par w/ TW but voices seem to come through better at 87%

Change-Id: Ic2dfdd793616529f36f31e6a8b7e7ec2dc52cb1f
expressatt bringup

Change-Id: Ifc65442452cfe861dec4812d8244afa08c27ba4e
Merge "expressatt bringup" into cm-10.2
Move some stuff from apextmo/expressatt to common

- Avoid some code duplication.
- Move camera wrapper from apexq (modify it to fix ISO modes) and
  make it available for other devices (ie: expressatt). Include
  media_profiles.xml for isx012.
- Include some additional scripts.
- Requires some slight changes to device trees.

Change-Id: Idfbca694274e2a8edd747e6a6aa9960ad37cd07f