Merge "clatd: drop system real uid/gid in favour of clat" into main am: cb8033b8fb

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3548305

Change-Id: I3769e0cf5afe8fb1b8fa11da2457211c9524440b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>