[llvm] [OFFLOAD] Add plugin with support for Intel oneAPI Level Zero (PR #158900)

[Alex Duran via llvm-commits]

adurang wrote:

> Just tried building this for liboffload - Looks like the platform is returning `OL_PLATFORM_BACKEND_UNKNOWN`, which is hitting the check in initPlugins and causing it to be skipped.

I introduced an issue in the binary checking in a previous change so it might be that. I already push the fix, so do you mind trying again?


https://github.com/llvm/llvm-project/pull/158900