Revert "Revert "Detect system_ext provenance for APKs-in-APEX""

This reverts commit 0f467cc8ff17dab85c29783d67abd99481d1aa24.

Reason for revert: Including a fix for non-APEX-enabled devices.

Change-Id: I238e88684f48981c44e7152f97b4ca16bed6d166
1 file changed