[automerger skipped] Re-enable libsnapshot ImageManagerTest am: c723fca0 am: 37645974 am: 350a5060 -s ours

am skip reason: Change-Id I858661fed7f58d1e2857ed88f5d8e0f5220bf8c2 with SHA-1 42a60816 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/12337395

Change-Id: I0a82914696fb4ba13f8f659e4fccfb292ccc1a12