[compiler-rt] [compiler-rt] Add SPIR-V target support for UBSan Minimal Runtime (PR #195979)

[Joseph Huber via llvm-commits]

https://github.com/jhuber6 requested changes to this pull request.

Any reason we need to explicitly match on spirv64 and not spirv?

https://github.com/llvm/llvm-project/pull/195979