[automerger skipped] [RESTRICT AUTOMERGE][pm] still allow debuggable for system app downgrades am: 62e086ad0e -s ours am: 170b5d95f4 -s ours am: 8257c5af17 -s ours am: 9f9315d362 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21261266

Change-Id: Ic884f31c460f514fc8529c97004b1267aa9649a3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>