Merge "snapuserd: Add snapuserd_test to presubmit and VTS." into main am: 5b91ae9f4e

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2698913

Change-Id: Ia766fe856c9f507def6a4912f05a85c1c0c89631
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>