[llvm] [RISCV][CostModel] VPIntrinsics have same cost as their non-vp counterparts (PR #67178)

[Shih-Po Hung via llvm-commits]

https://github.com/arcbbb commented:

LGTM. I'll await approval from others.
After this, it seems reasonable to pass VL to TTI cost function.

https://github.com/llvm/llvm-project/pull/67178