[CK_TILE] Improve F8F6F4 Scaled WarpGemm

[DDEle]

Proposed changes

• Add fp8/bf8 scaled warpgemm
• Enable double access mode for above
• slightly reformat and refactor

Checklist

Please put an x into the boxes that apply. You can also fill these out after creating the PR. If you're not sure, please don't hesitate to ask.

• I have added tests relevant to the introduced functionality, and the unit tests are passing locally
• I have added the test to REGRESSION_TESTS list defined at the top of CMakeLists.txt in tests/CMakeLists.txt, IF the test takes more than 30 seconds to run.
• I have added inline documentation which enables the maintainers with understanding the motivation
• I have removed the stale documentation which is no longer relevant after this pull request
• (If this change is user-facing) I have added release notes which provide the end users with a brief summary of the improvement from this pull request
• I have run clang-format on all changed files
• Any dependent changes have been merged

[Copilot]

Pull Request Overview

This PR refactors and improves the F8F6F4 scaled warp GEMM implementation by consolidating multiple type-specific implementations into a single generic template structure and enabling multiple access modes (single, double, quad) for fp8/bf8 operations.

Key changes:

• Consolidates multiple specialized WarpGemmAttributeMfmaImpl_f32_16x16x128_* structs into a single generic WarpGemmAttributeMfmaImpl_f32_16x16x128_f8f6f4 template
• Adds new inner namespace wrap_gemm_dispatcher within impl namespace with enum constant aliases for cleaner code
• Enables templated dispatcher pattern for scaled MFMA operations (fp8/bf8 combinations with 16x16x128 configuration) to support multiple access modes

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
warp_gemm_dispatcher.hpp	Refactored dispatcher by introducing inner namespace, renaming template struct, and adding templated specializations for scaled f8f6f4 operations
warp_gemm_attribute_mfma_impl.hpp	Consolidated multiple type-specific implementations into single generic template with improved type handling via lambdas
warp_gemm.hpp	Updated type aliases to reference the new unified implementation structure

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.