PR #20340: Fix missing template value

Imported from GitHub PR openxla/xla#20340

Fixes a bug introduced in this change: #2944

The change makes use of a template variable `%{compiler}`, that is not defined for this file. This causes the `-fno-canonical-system-headers` option to be set for Clang builds, and Clang will fail with an error about that command line flag not being defined.
Copybara import of the project:

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75a3d3fbcf2ead55df3872aa80ff21ac3dd9336c by Charles Hofer <[email protected]>:

Fix missing template value

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e08537b09200b0037db7a05780dea0d525399376 by Charles Hofer <[email protected]>:

Change flag to compiler_is_clang

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373f359cbd8d02ee850d98fed92a7bbca4a09c1b by Charles Hofer <[email protected]>:

Fix typo

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2be3c309d05f93a48dd9fdd06af8159108920516 by Harsha HS <[email protected]>:

[ROCm] Add cuda-only tags for nvidia profiler test

Merging this change closes #20340

PiperOrigin-RevId: 714293326

third_party/gpus/crosstool/clang/bin/crosstool_wrapper_driver_rocm.tpl

@@ -24,7 +24,7 @@ import pipes
 
 # Template values set by rocm_configure.bzl.
 CPU_COMPILER = ('%{cpu_compiler}')
-USE_CLANG = ('%{compiler}' == 'clang')
+USE_CLANG = ('%{compiler_is_clang}' == 'True')
 HOST_COMPILER_PATH = ('%{host_compiler_path}')
 
 HIPCC_PATH = '%{hipcc_path}'

third_party/gpus/rocm_configure.bzl

@@ -757,7 +757,7 @@ def _create_local_rocm_repository(repository_ctx):
         tpl_paths["crosstool:clang/bin/crosstool_wrapper_driver_rocm"],
         {
             "%{cpu_compiler}": str(cc),
-            "%{compiler}": rocm_defines["%{compiler}"],
+            "%{compiler_is_clang}": "True" if is_rocm_clang else "False",
             "%{hipcc_path}": str(repository_ctx.path(rocm_config.rocm_toolkit_path + "/bin/hipcc")),
             "%{hipcc_env}": _hipcc_env(repository_ctx),
             "%{rocm_path}": str(repository_ctx.path(rocm_config.rocm_toolkit_path)),