[llvm] [RISCV] Model vd as a src for some Zvk* instructions in MC layer. (PR #86710)

[Craig Topper via llvm-commits]

topperc wrote:

> Are you planning on doing this on the Pseudo MI level too?

I already did 8551454313233ecc70a329de0eb0064ecb675d50

https://github.com/llvm/llvm-project/pull/86710