Merge "Add a flag to control the exposure of VCN APIs for mainline migration" into main am: 605563e333

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3323803

Change-Id: Ib8563a8bdeaa9f9f4a603b3ae05ec514ec9fc84e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>