[llvm] [LV] Optimize VPWidenIntOrFpInductionRecipe for known TC (PR #118828)

[Hari Limaye via llvm-commits]

hazzlim wrote:

> LGTM, thanks!

Thanks so much @fhahn and @david-arm for reviewing - I will wait for the buildbots to be happy after fixing the conflict with upstream/main and then I will land this.

https://github.com/llvm/llvm-project/pull/118828