Merge "Add soong config variable Release_expose_flagged_api" into main am:...

Merge "Add soong config variable Release_expose_flagged_api" into main am: 19cd806d am: 3163daa6 am: 7ca3a3b2

Original change: https://android-review.googlesource.com/c/platform/build/+/2763272



Change-Id: I54fad33aada76dc68022c37dfd0bd7216fcbd30e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>