llvm

557b36ab - [UR] Use pre-installed compute-runtime L0 headers if found (#18276)

[UR] Use pre-installed compute-runtime L0 headers if found (#18276) I'm trying to make dpcpp more friendly to packaging by Linux distros, and we should be using system-installed dependencies by default. Find the system-installed compute-runtime headers and use them if they exist instead of downloading the upstream repo. Also fix an include that doesn't work with system headers. Signed-off-by: Sarnie, Nick <nick.sarnie@intel.com>