Skip Reformer for Dynamic size testing (#132468)
Summary:
**Summary**
As discussed in https://github.com/pytorch/pytorch/issues/132286, `Reformer` has specialized the batch size dim which will fails the API `mark_dynamic` https://github.com/pytorch/pytorch/blob/3a355c1891f2edde0e7ee9d9737e96fa851fa325/torch/_dynamo/decorators.py#L228-L230
X-link: https://github.com/pytorch/pytorch/pull/132468
Approved by: https://github.com/ezyang
Reviewed By: PaliC
Differential Revision: D61000459
fbshipit-source-id: 73c8f36805779fb8e08515af11140accafb863e2