[ESIMD] Add tests for new esimd::xmx:dpas API#1281

v-klochkov merged 3 commits intointel:intelintel/llvm-test-suite:intelfrom

v-klochkov:dpas_low_level_api_litv-klochkov/llvm-test-suite:dpas_low_level_api_litCopy head branch name to clipboard