msm8974-common: Fixup CameraWrapper for L

  -Also clean up code and get rid of warnings.
   Clean up from Arne Coucheron works on other samsung wrappers.

  -Requires device tree to include a CameraParametersExtra.h
   for the specific device.

Change-Id: Icab1b9ec17710861f735a05dcdd87dac932c63c2
msm8974-common: Move camera wrapper up to device repos

Change-Id: Ie16e0ccc0630edfafec935ae6f311826bc1a42fc
msm8974-common: Update media_codecs for L

Change-Id: I43e9f833033751fe65f01bd3bcc9f320cdf538be