What does this MR do and why?
clc: Adjust for clang res_path change since LLVM 17
Clang started to use /usr/lib as a resource dir on 64 bit systems and intel_clc invocation doesn't count with that and fails to find opencl-c.h unless the path to the resources is amended properly.
The mesa build itself against the LLVM 17 still fails on unrelated issues to the resource dir.
Fixes #9778 (closed)
Signed-off-by: František Zatloukal firstname.lastname@example.org