[jit] Fix iOS build (#34180)
Summary:
`unpickler.cpp` depends on the mobile type parser all the time, so include it regardless of whether it's a mobile build or not
Pull Request resolved: https://github.com/pytorch/pytorch/pull/34180
Pulled By: driazati
Differential Revision: D20241881
fbshipit-source-id: a998dd2b3f1c7f58e55bb7851dc595c8ddf9eacb
