Add correct resolution table for the camera

This should add 13MP and 10MP into the list of resolution options
in the camera app.

Change-Id: Id27a59ce0072df1d408d845145563901cae77b42
set use_camera_stub

Change-Id: If8e69b8426a366c2ae19b5dddb8b43a1d6e3fe09
Fix overlays and setup proper append/init of PRODUCT_PACKAGES

Previously, Torch was not getting built due to conflicts and re-initialization
of some flags between the vendor and dev trees.

Change-Id: I7ecb0581c4abe8c5eb4082e6a276bc3e80168e03
Calibrate auto brightness levels

Change-Id: Ia7077b939eb6fdcce4504c3d8e30d8043cdd03f1
set 'ondemand' as default governor

Change-Id: I5ce853611b332cd4d10da2f314dbf1b474718415