Add fake_packages to the list of exceptions to INSTALLED_FILES_OUTSIDE_PACKAGES

Don't depend on fake_packages, they are already expanded into their
required modules.

Bug: 225187583
Bug: 226573153
Test: check dependency path to out/target/product/coral/system/apex/com.android.vndk.current.apex
Change-Id: Id7a646fe0368051a4a4719f846a158de07be9d20