[llvm] [RISCV][llvm-mca] Use Sched*MC for Zvk MC instructions and add Zvk tests for P600 (PR #89256)

[Pengcheng Wang via llvm-commits]

wangpc-pp wrote:

I think we really need a tool to verify MCInst level RVV instructions. :-)

https://github.com/llvm/llvm-project/pull/89256