Qualcomm AI Engine Direct - Fix aihub path failing due to memory planning pass (#5482)

Summary:
Update MemoryPlanningPass to use default greedy algo.

Pull Request resolved: https://github.com/pytorch/executorch/pull/5482

Reviewed By: kirklandsign

Differential Revision: D63270305

Pulled By: cccclai

fbshipit-source-id: 7fb03365e3cadb53e4879feb7f105aadc9e9497c