Merge "Move zygote64 into the top-app stune group." into rvc-dev am: 4dc1d5f3de am: 8632f15dc4

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/11884893

Change-Id: I47f7d3695721b92b2d9fec948cb3322c67741ac0