add a tuned fp4 gemm ds config and insert entries in untuned config

[hongxiayang]

Motivation

Fix the ds related fp4 gemm micro-benchmarking issues

• add one fp4 gemm tuned config for shape 1, 2112, 7168
  otherwise, it will be missing heuristics

• insert previously tuned config (add several ds shapes to fp4 tuned config #1131) to the untuned csv file as well .

3000, 2112, 7168
60000, 4096, 512
3000, 7168, 256
8, 2112, 7168

[Copilot]

Pull Request Overview

This PR addresses DeepSpeed FP4 GEMM micro-benchmarking issues by adding tuned configurations and updating the untuned configuration list. The changes ensure that all necessary matrix multiplication shapes have proper heuristics available.

Key changes:

• Added one new tuned configuration entry for shape (1, 2112, 7168)
• Added five previously tuned shapes to the untuned configuration list

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
aiter/configs/a4w4_blockscale_untuned_gemm.csv	Added 5 matrix shapes including the new (1, 2112, 7168) and 4 previously tuned shapes
aiter/configs/a4w4_blockscale_tuned_gemm.csv	Added tuned configuration for matrix shape (1, 2112, 7168) with kernel parameters

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