Allowlist for exempting packages from being marked as stopped by default

An allowlist for packages that should not be scanned in a "stopped" state.

Bug: 249514169
Test: Manual. Added a system package in the allowlist, performed factory
reset and checked the stopped state of the same package after 1st boot.

Change-Id: Iec603243d7c95d4cdf207f7873373a851698b243