[llvm] [SelectionDAG] Make sure demanded lanes for AND/MUL-by-zero are frozen (PR #180727)

[via llvm-commits]

llvmbot wrote:

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Failed to cherry-pick: 6420099bcc62a09e002e500870216b2dd9d256a9

https://github.com/llvm/llvm-project/actions/runs/21948957100

Please manually backport the fix and push it to your github fork.  Once this is done, please create a [pull request](https://github.com/llvm/llvm-project/compare)

https://github.com/llvm/llvm-project/pull/180727