[CK] add composable kernel support on gfx1250 (#6978)
## Motivation
Add composable kernel support on gfx1250.
## Technical Details
<!-- Explain the changes along with any relevant GitHub links. -->
## Test Plan
<!-- Explain any relevant testing done to verify this PR. -->
## Test Result
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## Submission Checklist
- [ ] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.
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Co-authored-by: Qun Lin <qlin@amd.com>
Co-authored-by: jialuo12_amdeng <jia.luo@amd.com>
Co-authored-by: Andriy Roshchenko <andriy.roshchenko@amd.com>
Co-authored-by: hsivasun_amdeng <haresh.sivasuntharampillai@amd.com>
* Add trait to use a persistent kernel and split the entrypoints in grouped gemm
* Some helper functions for persistent kernel case
* Get max occupancy grid using device properties
* Implement tile loop in main entry point to grouped gemm
* Enable GridSize() on device
* Handle offset tile index using real current block index
* Add persistent kernel choice to grouped gemm example
* Use a for-loop for iterating over the group
* Reduce VGPR spills by early-exit
* Enable persistent kernel choice in grouped_gemm example
* Add persistent kernel option to grouped_gemm test
* Fix formatting with remod.py
* Remove GridUpdateBlocks as blocks are now iteratively computed
* Add comment about VGPR spilling
* Fix formatting
* Use CK_TILE_HOST instead of __host__
* Enable all Row/Col combinations in grouped gemm unit test
* Add some KBatch=2 cases to grouped gemm tests
* Fix SplitK for grouped gemm
* Enable pipeline hotloop/tailnumber selection in-kernel for grouped gemm
* Add type traits
* Split examples to regular and tileloop
* Formatting
* Use hipExtStreamGetCUMask to get current active CUs for the given stream
* Align test and example kernel config, and disable validation for splitk repeats
* Remove debug options from CMakeLists.txt
* Separate the code paths for persistent/non-persistent in test
* Fix formatting
* Address review comments
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Co-authored-by: Adam Osewski <19374865+aosewski@users.noreply.github.com>
