[automerger skipped] Merge "Disallow system apps to be installed/updated as instant." into sc-v2-dev am: 7750c2635e -s ours am: edaa1d9142 -s ours am: 912658cd7a -s ours

am skip reason: Merged-In Idd89a6dd72f0e68259095f677185f0494391025c with SHA-1 0d0f185c0d is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/25718734

Change-Id: I6d17bbc54776cc51502cb02497aee416ba6a0669
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>