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>
Correct return value of clUnloadCompiler and clUnloadPlatformCompiler
API calls.
Change-Id: I352b271e9f97be88cf29c4a097aa2e664ba3206a
Signed-off-by: Filip Hazubski <filip.hazubski@intel.com>