[automerger skipped] [RESTRICT AUTOMERGE][pm] prevent system app downgrades of...

[automerger skipped] [RESTRICT AUTOMERGE][pm] prevent system app downgrades of versions lower than preload am: 0a549074 -s ours am: 6310ebe7 -s ours am: 2238159b -s ours

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Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21161445



Change-Id: I65da2c185986a0cdae34f526e5461915ceade74d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>