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

[Florian Hahn via llvm-commits]

fhahn wrote:

@david-arm it looks like the patch wasn't rebased in a while, and some of the check lines were stale and just needed a simple update. The only way to avoid this currently is updating the branch before merging and waiting for the precommit tests to complete again, as otherwise it won't catch failures due to changes on `main` since they were run the last time

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