[fix] kaiser_window : meta for window_length > 1 (#73733)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/72630
Pull Request resolved: https://github.com/pytorch/pytorch/pull/73733
Reviewed By: samdow
Differential Revision: D34858617
Pulled By: mruberry
fbshipit-source-id: bd300be590db9cdde8600e3d29e9f1de356d5105
(cherry picked from commit 2d4db9620bd7e5134d8eda50d17f0087419240e4)