Merge "Add the "sys" group for tests." am: f4060714 am: 123029cd am: 3ef3b327

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



Change-Id: I801d6c406b216d7223c958ff6b01197b030d3cbb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>