Merge "pm: Require manifest.json for .dm (dex-metadata) files." into sc-dev am: 9c28f970

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13475370

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ieea3e81b1ecf05c101bed0356d9a5c8658639b35