[inductor] Switch to use the runtime interface for AOTInductor testing (#108663)
Summary: Switch AOTInductor unit tests and integration tests to invoke the same runtime interface. This is only an effort to unify the usage of the runtime. The interface scrutiny will come in later PRs.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/108663
Approved by: https://github.com/ezyang
ghstack dependencies: #108653
