[llvm] [LoopVectorize] Enable more early exit vectorisation tests (PR #117008)

[Florian Hahn via llvm-commits]

fhahn wrote:

@david-arm just noticed it failing locally. Pressing the `Update Branch` button should merge in changes from current `main` and then trigger a new run of the pre-commit checks

https://github.com/llvm/llvm-project/pull/117008