[llvm] [mlir] [MLIR] Generalize expand_shape to take shape as explicit input (PR #90040)

[via llvm-commits]

MaheshRavishankar wrote:

@ftynse unless this arith -> utils dependency breaks builds (I dont think it does, cause there is no cyclic dependency afaics), i think it might be better to land this and then remove the dependency as a quick follow up. This is fairly big change, and more things might get added that will have to be resolved. I am inclined to take the snap shot as is, but fix the dependency issue quickly after.

https://github.com/llvm/llvm-project/pull/90040