[clang-tools-extra] [MLIR] Enabling Intel GPU Integration. (PR #65539)

[Renato Golin via cfe-commits]

rengolin wrote:

CI failure looks like Buildkite issue?
```
$ /etc/buildkite-agent/hooks/pre-checkout
--
  | BUILDKITE_REPO: https://github.com/llvm/llvm-project.git
  | fatal: not a git repository (or any parent up to mount point /var/lib)
  | Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
  | 🚨 Error: The global pre-checkout hook exited with status 128
```

https://github.com/llvm/llvm-project/pull/65539