camera: Touch focus support for camcorder
* Available when video snapshots are not supported.
* Original from CodeAurora Forum.
* Thanks to Steve Kondik for implementing
Camera2: fix FC when switching camera in video mode

mFocusManager's manager needs to be updated before startPreview,
otherwise setParameters will be called with an invalid preview
mode resulting in a crash on some device (in this case, aries).

Change-Id: I32c113e744f95b4939c070b3aad8b4b5c53fce65
camera: Remove ICS hack to stop preview after takePicture

Change-Id: Idcecfc6399421bd5dc25dcf79548949cdd14621f