[llvm] [AMDGPU] Enable WMMA256bInsts + Wave32 for gfx1200/gfx1201 + SISchedule fix + TargetParser gfx1200 propagation (PR #202093)

[Krzysztof Drewniak via llvm-commits]

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@@ -1,455 +1,19 @@
-; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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krzysz00 wrote:

Don't drop autogeneration here

https://github.com/llvm/llvm-project/pull/202093