[llvm] [RISCV] Use Log2SEW=0 for VMNAND/VMSET created for riscv_vmsge(u) intrinsics. (PR #119767)

[Craig Topper via llvm-commits]

topperc wrote:

I accidentally included the dependent patch when resolved the merge conflict against main.

https://github.com/llvm/llvm-project/pull/119767