[llvm] [RISCV] enable VTYPE before whole RVVReg move (PR #117866)

[Piyou Chen via llvm-commits]

BeMg wrote:

https://github.com/llvm/llvm-project/pull/118283 is better when we try to resolve it in insert vsetvl pass.

https://github.com/llvm/llvm-project/pull/117866