[automerger skipped] Merge "[RESTRICT AUTOMERGE][pm] prevent system app...

[automerger skipped] Merge "[RESTRICT AUTOMERGE][pm] prevent system app downgrades of versions lower than preload" into sc-v2-dev am: ba19cee2 -s ours am: f7ca2c9b -s ours am: 953c7189 -s ours

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Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21160269



Change-Id: Ibff4a34cfffb38b41cf1c3a9852d6ae782e196bb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>