[llvm] [RISCV] Split OPERAND_SEW operand type for mask only instructions. (PR #119776)

[Craig Topper via llvm-commits]

topperc wrote:

> Is this stacked on top of #119767? That PR also seems to include this commit too though

It is. I forgot to write that in the description. Sorry.

https://github.com/llvm/llvm-project/pull/119776