Merge "Move PackageManagerTests to postsubmit" into udc-dev am: 72b4737194 am: 3a45b6e195

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24463858

Change-Id: Ifa6f5d0309ae87af23874550b3dcd614f8107806
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>