Symlink hermetic cuda headers to permit clang cuda version detection

Fixes openxla#16877

third_party/tsl/third_party/gpus/cuda/hermetic/cuda_redist_init_repositories.bzl

@@ -192,6 +192,10 @@ def _create_symlinks(repository_ctx, local_path, dirs):
             dir,
         )
 
+def _create_cuda_header_symlinks(repository_ctx):
+    if repository_ctx.name == "cuda_nvcc":
+        repository_ctx.symlink("../cuda_cudart/include/cuda.h", "include/cuda.h")
+
 def use_local_path(repository_ctx, local_path, dirs):
     # buildifier: disable=function-docstring-args
     """Creates repository using local redistribution paths."""
@@ -295,6 +299,7 @@ def _use_downloaded_cuda_redistribution(repository_ctx):
         lib_name_to_version_dict,
         major_version,
     )
+    _create_cuda_header_symlinks(repository_ctx)
     repository_ctx.file("version.txt", major_version)
 
 def _cuda_repo_impl(repository_ctx):