PR #10252: [STACKED PR] [XLA:GPU][NFC] Rename Triton autotuner to GEMM fusion autotuner.
PR #10252: [STACKED PR] [XLA:GPU][NFC] Rename Triton autotuner to GEMM fusion autotuner.

Imported from GitHub PR https://github.com/openxla/xla/pull/10252

// Testing stacked PRs.

As discussed during the addition of the cuDNN GEMM fusion backend the autotuner pass can have a better name now.

Copybara import of the project:

--
00341e6bc2edf6bb8be1eb5cdf6a59f6bbb39efc by Ilia Sergachev <isergachev@nvidia.com>:

[XLA:GPU] Fix xla_gpu_dump_autotuned_triton_fusions flag interaction with fallback to cuBLAS.

Currently using the flag leads to crashes on checks in TritonGemmConfig::FromProto() when any GEMM fusion falls back to cuBLAS.

--
4b99f304ccd1bd81bd2b99727f62dd6d50754661 by Ilia Sergachev <isergachev@nvidia.com>:

[XLA:GPU][NFC] Rename Triton GEMM autotuner to GEMM fusion autotuner.

Merging this change closes #10252

FUTURE_COPYBARA_INTEGRATE_REVIEW=https://github.com/openxla/xla/pull/10252 from openxla:rename_gemm_fusion_related 4b99f304ccd1bd81bd2b99727f62dd6d50754661
