[clang] [llvm] [RISCV] Introduce and use BF16 in Xsfvfwmaccqqq intrinsics (PR #71140)

[Craig Topper via llvm-commits]

topperc wrote:

This patch is unfortunately incorrect because  Zvfbfmin implies Zfbfmin but the SiFive CPUs that implement Xsfvfwmaccqqq do not implement Zfbfmin.

https://github.com/llvm/llvm-project/pull/71140