Rename tuned MI300X config files for fused_moe_triton

[HaiShaw]

Motivation

Rename tuned config files from fused_moe_triton changes

Modifications

As it is.

This recovers most performance.
Still ~3.0-4.x% perf drop from v0.3.6.post2, which will be looked into further.

Checklist

• [+] Format your code according to the Contributor Guide.
• [+] Add unit tests as outlined in the Contributor Guide.
• [+] Update documentation as needed, including docstrings or example tutorials.