[NNC] Do not optimize conditionals when the corresponding loop is not normalized (#57675)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/57675
Test Plan: Imported from OSS
Reviewed By: bertmaher
Differential Revision: D28231375
Pulled By: navahgar
fbshipit-source-id: bcbcebca25577744c7190a0aa9fa376f76dea77d
