Merge "Migrate droidstubs/droiddoc to flags" into main am: 5e416bb8 am: 58b1862d

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2796122



Change-Id: I01310f999fd251b17154172502ddbfbb42491501
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>