Reapply "[msan] Add avx512-intrinsics.ll and avx512-intrinsics-upgrade.ll test case (llvm#123980)" (llvm#124500)

This reverts commit b2647ff i.e.,
relands llvm@980e86f.

I had reverted the original patch because of buildbot failures (e.g., https://lab.llvm.org/buildbot/#/builders/13/builds/4938/steps/5/logs/FAIL__LLVM__avx512-intrinsics-upgrade_ll). This reland addresses the likely root cause; namely, that the target datalayout had not been specified.

Additionally, this reland improves the test case by replacing undef with extra parameters.

Author: thurstond