[GSD-11613] Support for building just L0 Sysman support without IGC dependency

Because IGC is preventing building of latest compute-runtime versions: https://github.com/intel/intel-graphics-compiler/issues/224

Alternatively, compute-runtime could detect at build time whether installed IGC version supports EU fusion, and use it only when IGC supports it. That way compute-runtime could still be built with older IGC versions that do not break compute-runtime build.