[AOTI] Make abi_compatible as default for OSS CI (#119126)
Summary: Introduce an environment varible AOT_INDUCTOR_ABI_COMPATIBLE to control the ABI-compatible mode, and turn it on for OSS CI.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/119126
Approved by: https://github.com/chenyang78
ghstack dependencies: #119125
