[llvm] [TwoAddressInstruction] Drop physreg ranges after unfolding a load (PR #227538)

[Christudasan Devadasan via llvm-commits]

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

LGTM.
We may have to make similar incremental fixup in this pass as we compute and maintain LIS here.

https://github.com/llvm/llvm-project/pull/227538