[llvm] [VPlan] Use DomTreeUpdater to automatically update DT for vector loop. (PR #92525)

[via llvm-commits]

https://github.com/ayalz approved this pull request.

LGTM!
Couple of last final nits, plus worth updating the summary that native is left for follow-up.

https://github.com/llvm/llvm-project/pull/92525