[HLSL] Add Offload distribution (#196640)
This PR adds a new distribution to the HLSL cmake file.
The purpose is so that we can portably distribute binaries to other
machines so that offload testing can be optimized.
Assisted by: Github Copilot
This PR was inspired by @Icohedron 's comment here:
https://github.com/llvm/offload-test-suite/pull/1149#issuecomment-4409079785
This addresses https://github.com/llvm/offload-test-suite/issues/1150
