[llvm] [LV][EVL] Replace VPInstruction::Select with vp.merge for predicated div/rem (PR #154072)

[Luke Lau via llvm-commits]

https://github.com/lukel97 commented:

I'm happy to have this as incremental improvement, but this change won't be correct without #155394 landing first. Other other recipe transforms also have this incorrect behaviour but I'd like to avoid making the problem worse

https://github.com/llvm/llvm-project/pull/154072