[automerger skipped] Merge "[RESTRICT AUTOMERGE][pm] still allow debuggable...

[automerger skipped] Merge "[RESTRICT AUTOMERGE][pm] still allow debuggable for system app downgrades" into tm-qpr-dev am: 76c55cf2 am: b7090bef -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21266934



Change-Id: I6dc94ccd089b628d093d94c3ececb95f010017c9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>