[split cat fx passes] Normalize squeeze (#102294)
Summary: Sometimes, squeeze can be a "call_method" instead of a "call_function". Normalizing it will make it amenable to pattern matching by passes like "split->squeeze"
Test Plan: * CI tests
Differential Revision: D46031846
Pull Request resolved: https://github.com/pytorch/pytorch/pull/102294
Approved by: https://github.com/jansel
