Merge "check-flagged-apis.sh: speed up build step" into main am: 984f5ca8 am: c10417e4

Original change: https://android-review.googlesource.com/c/platform/build/+/3074283



Change-Id: Id5d7265e5f9521c8d8dae105f325d747d8ad780d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>