[automerger skipped] Merge "[RESTRICT AUTOMERGE][pm] prevent system app downgrades of versions lower than preload" into sc-dev am: f47417fce9 am: 8c87e33349 -s ours am: 746376ba8b -s ours am: 1ffb88aad8 -s ours am: fe95bb0762 -s ours

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Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21160027

Change-Id: I95330533562d0fb741a778e519897c2c1670e49b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>