CameraWrapper: Disable face detection for ZSL on JB cam

- face detection enabled causes crash in frameproc for ZSL shots
  after flash has been used and then turned off (JB camera)
  JIRA: CYAN-5583

Change-Id: Ieed01654b3a4c6dc3d267cff366fd1589eabe96f
Merge pull request #6 from CyanogenMod/cm-11.0

CameraWrapper: Disable face detection for ZSL on JB cam