Various updates to kernel

hi master ı made some changes
major change: ı returned back to our original ION_CAMERA_HEAP configuration why? because
1th reason:msm7x30 isnt designed to use ION_CP_MM heap so forcing/porting(whatever you say) msm7x30 devices to use ION_CP_MM heap will absolutely reduce the stability on VİDC operations ı think(as we cans see on users post, some users are experiencing random lockup and freezes)

also the following change on media-caf side must be reverted https://github.com/arco/android_hardware_qcom_media-caf/commit/94eac3984755ef1de6a49ed9af22b28da6bbd66b

ı will be waiting for your feedback and review sir

thanx
regards