Revert "Revert^2: Add dex item for hiddenapi flags"

This reverts commit fe3a979f6214e2ea94a9aed4c573c6a6f64c7096.

Reason for revert: Caught by droidcop https://b.corp.google.com/issues/118481351

Change-Id: I17cc3586c9ae3b49839633d9543edce2937c388d
24 files changed