Add prim::TensorExprDynamicGuard to bc allowlist (#66939)
Summary:
Fixes #{issue number}
Pull Request resolved: https://github.com/pytorch/pytorch/pull/66939
Reviewed By: ejguan
Differential Revision: D31797160
Pulled By: soulitzer
fbshipit-source-id: 630b7a0ab99671192397f927391361622f7e9c2e
