[llvm] [RISCV] Enable scalable loop vectorization for zvfhmin/zvfbfmin (PR #115272)

[Pengcheng Wang via llvm-commits]

wangpc-pp wrote:

What is the result if we change data type in TSVC2 to bf16? Can we handle all cases correctly?

https://github.com/llvm/llvm-project/pull/115272