[automerger skipped] [RESTRICT AUTOMERGE][pm] still allow debuggable for system app downgrades am: b050c4ba02 -s ours am: 8b653eba3a -s ours am: 54e4924483 -s ours am: c37f8c61b2 -s ours am: fa12f91826 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21267278

Change-Id: If2c92ef8c72ccca5c116d7f5cc8ddaf11cafdb09
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>