[EZ] Fix type of functional.pad default value (#62095)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/62095
Test Plan: Imported from OSS
Reviewed By: jbschlosser
Differential Revision: D29879898
Pulled By: jamesr66a
fbshipit-source-id: 903d32eca0040f176c60ace17cadd36cd710345b
