Merge "aconfig: add @UnsupportedAppUsage to methods in generated flags" into...

Merge "aconfig: add @UnsupportedAppUsage to methods in generated flags" into main am: 057a3dd4 am: 59f91d6e

Original change: https://android-review.googlesource.com/c/platform/build/+/2777061



Change-Id: Ib61b9c85410093887e009954d65c3f643aa7347e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>