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:

--
e6bf9c4a571ba1afdd3f333fc0d0e51e1c8abec9 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 e6bf9c4a571ba1afdd3f333fc0d0e51e1c8abec9
