Allowlist for platform signed package/sharedUid-s. Fixes: 308573259 Test: atest android.content.pm.cts.PackageManagerTest (cherry picked from https://googleplex-android-review.googlesource.com/q/commit:7df20617288f7fefeff9b354581b481db66f30f0) Merged-In: I14769567dbf15d9a352ae4ce56d27737061847bd Change-Id: I14769567dbf15d9a352ae4ce56d27737061847bd