[FX] fix normalization issues with lists of tensors (#57004)
Summary:
Fixes issue with lists of tensors not being normalized correctly.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/57004
Reviewed By: jamesr66a
Differential Revision: D28034559
Pulled By: Chillee
fbshipit-source-id: f935f0b73a8356acd8a2ae93fcfc0417f0eab224
