mondrianwifi: camera: Add our wrapper and disable the msm8960 one

When I cleaned up the proprietary files, I accidentally disabled
our camera wrapper.  Re-enable the wrapper and at the same time
ensure we don't build the msm8960 one that we don't use anyway.

Change-Id: Icd0cffcf1655341fd1d6f2e139b3803cf7cb2063