allow INSTALL_TEST to pass through from env to cmake (#23793)
Summary:
This allows `INSTALL_*` to pass through to cmake.
Additional fix is that if `INSTALL_TEST` is specified, it wont use `BUILD_TEST` as the default value for `INSTALL_TEST`
Pull Request resolved: https://github.com/pytorch/pytorch/pull/23793
Differential Revision: D16648668
Pulled By: soumith
fbshipit-source-id: 52c2a0d8033bc556355b87a6731a577940de9859
