PR #13391: [NVIDIA] Disable the bias reuse when gemm users > 1
PR #13391: [NVIDIA] Disable the bias reuse when gemm users > 1

Imported from GitHub PR https://github.com/openxla/xla/pull/13391

We encountered a new use case where our reset of the `output to operand aliasing` won't be reached when the gemm users > 1 and that additional user does another amax-like ops.

This PR fix it and the corresponding unit test is included.

cc. @philipphack @reedwm @hx89
Copybara import of the project:

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362671affabad98c9d38d28af48e0127c1ed1586 by kaixih <kaixih@nvidia.com>:

Disable the bias reuse when gemm users > 1

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02daf802271927bd48b07a1253779ba451ea8bca by kaixih <kaixih@nvidia.com>:

Rename the test

Merging this change closes #13391

FUTURE_COPYBARA_INTEGRATE_REVIEW=https://github.com/openxla/xla/pull/13391 from kaixih:fix_fp8_bias_reuse 02daf802271927bd48b07a1253779ba451ea8bca
