Add missing separated g3_shared namespace for 3A codebase. am: 6ff7ca0ee0

Original change: https://googleplex-android-review.googlesource.com/c/device/google/gs-common/+/23875211

Change-Id: I3b3c883b9786ed96e190b8e8494b3ad3e935a93c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>