[automerger skipped] RESTRICT AUTOMERGE Added limitations for attributions to handle invalid cases am: 6219cbabc1 -s ours am: 9deb228c74 -s ours am: 49e2f5abdf -s ours

am skip reason: contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/25713742

Change-Id: I9eef6f674f9dd0feac8ea06b00ba211ca9930abe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>