Merge "Migrate droidstubs/droiddoc to flags" into main am: 5e416bb8 am: b3c57552

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



Change-Id: Idcc657194b3234e023b4b446119f892a5b8eea79
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>