[RISCV][NFC] Factor out VLEN in the SiFive7 scheduling model#143629

mshockwave merged 1 commit intollvm:mainllvm/llvm-project:mainfrom

mshockwave:patch/rvv/sifive7-vlenmshockwave/llvm-project:patch/rvv/sifive7-vlenCopy head branch name to clipboard