[SGLANG] add sglang block fp8 gemm kernels into benchmark

[vlad-penkin]

[vlad-penkin]

@airMeng i've added this ticket to track this feature. Our repo policy is to have linked issue for each open PR.

[vlad-penkin]

@LiyangLingIntel can we close this ticket?

[leonling-ll]

@LiyangLingIntel can we close this ticket?

I suggest to merge #3654 to third-party benchmark when #3796 lands.
SGLang fp8_kernel depends on sgl-kernel, while sgl-kernel is hard-coupled with NV backend.

[leonling-ll]

@LiyangLingIntel can we close this ticket?

I suggest to merge #3654 to third-party benchmark when #3796 lands. SGLang fp8_kernel depends on sgl-kernel, while sgl-kernel is hard-coupled with NV backend.

Cherry pick block_fp8_gemm kernel from #3645 to #3796, block fp8 gemm benchmark will be integrated in sglang third party benchmark with #3796.

[leonling-ll]

The blocked fp8 kernel is merged into #3796.
@vlad-penkin Please help decide should we close or merge it.