PR #10878: Disable Fusion of FP8 Matrix Bias
PR #10878: Disable Fusion of FP8 Matrix Bias

Imported from GitHub PR https://github.com/openxla/xla/pull/10878

Disables the fusion of a matrix bias into a GEMM Custom Call when the bias has an FP8 data type.
Copybara import of the project:

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83d29227b698059b56bed4d84ef44c0967a003fe by Philipp Hack <phack@nvidia.com>:

Disable FP8 matrix bias fusion.

Merging this change closes #10878

FUTURE_COPYBARA_INTEGRATE_REVIEW=https://github.com/openxla/xla/pull/10878 from philipphack:u_fp8_disable_bias_xla 83d29227b698059b56bed4d84ef44c0967a003fe
