[llvm] [mlir] [mlir] fix overflow in LLVM dialect inlining (PR #72878)

[Tobias Gysi via llvm-commits]

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

LGTM

I guess `tryToEnforceAlignment` and `tryToEnforceAllocaAlignment` should probably also use uint64_t for consistency? 

https://github.com/llvm/llvm-project/pull/72878