[llvm] [LAA] Use MaxStride instead of CommonStride to calculate MaxVF (PR #98142)

[via llvm-commits]

mrdaybird wrote:

After a bit of thought, I was wondering if we could do better by taking into account the sign of the strides. But I noticed that `getDependenceDistanceStrideAndSize` returns the absolute value of strides. Any particular reason for that? @fhahn 
I was thi

https://github.com/llvm/llvm-project/pull/98142