Revert "Add iso mode settings to the CameraWrapper"

This reverts commit 9100865b39e0fcdc8b0c86a2eb8e52932cebd5a8.
several changes
disable selinux
remove some overlay configs
Merge branch 'cm-12.0' of https://github.com/MarcKe/android_device_samsung_i9300 into cm-12.0