[CK_TILE] Remove scratch usage from universal gemm

[jakpiase]

Proposed changes

Remove scratch usage from universal gemm by moving the if kbatch related condition oustide of kernel and passing memory operation enum as a template parameter

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.

• [X] 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
• [X] I have run clang-format on all changed files
• [X] Any dependent changes have been merged