Dates corrected in copyright headers to reflect original publication date
(2018 for OpenCL, 2020 for Level Zero).
Signed-off-by: lgotszal <lukasz.gotszald@intel.com>
Additionally remove dependencies on opencl code from aub and tbx code.
Related-To: NEO-3964
Change-Id: Ie81b7d274e2f22b6090df0e07c45123618af5cae
Signed-off-by: Filip Hazubski <filip.hazubski@intel.com>