[CK] add composable kernel support on gfx1250 (#6978)
## Motivation
Add composable kernel support on gfx1250.
## Technical Details
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## Test Plan
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## 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>
* upgrade default docker to rocm7.0.1
* turn on build and test on gfx950 by default
* use rocm-dev instead of rocm
* link libhiprtc for codegen targets
* resolving codegen compilation errors: removed calls to other std functions, resolved issues with int32_t: needed the correct header, put use of e8m0 into header guards
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Co-authored-by: Astha Rai <astha.rai713@gmail.com>
