Merge "Add the "sys" group for tests." am: f4060714 am: 123029cd

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2200001



Change-Id: I8faa820c7469440efbe7546f7f34a23047845468
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>