[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 skip reason: subject contains skip directive

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

Change-Id: Iabc7439a7f9fc75d871c10db03a8ab32fdcf23ca
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>