Basedir of a bundled app is added to the permitted paths

For bundled apps, add the base directory of the app (e.g.,
/system/app/Foo/) to the permitted paths so that it can load libraries
embedded in module apks under the directory. For now, GmsCore is relying
on this, but this isn't specific to the app. Also note that, we don't
need to do this for unbundled apps as entire /data is already set to
the permitted paths for them.

Bug: 79211269
Test: m -j
Test: permitted paths of PrebuiltGmsCore contains
/system/priv-app/PrebuiltGmsCorePix

Change-Id: Id9a874fcec8479e952ab94cf33b2537f9aacd691