Add javadoc to compat-ids am: 94a10629a9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/30382266

Change-Id: I5193782f185bc9364ca513fc1845707c345a3475
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>