Merge "Merge "Drop supplementary groups for child zygotes." into rvc-dev am:...

Merge "Merge "Drop supplementary groups for child zygotes." into rvc-dev am: 1a081317 am: 81a1af64" into rvc-d1-dev-plus-aosp am: 5c4047db

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11691823

Change-Id: Id153437120aa1d4206582a9b15cdeb48f7e3b545