Check that Runtime APEX libraries don't end up in /system/${LIB}.

This is a stop-gap measure for a proper fix enforcing library "ownership" in
Soong: b/128708192

Test: m systemimage (with and without libs that exist in /system/lib)
Test: Check that this fails:
  m systemimage
  m out/target/product/taimen/system/lib/libjdwp.so
  m systemimage-nodeps
Bug: 124293228
Change-Id: Iac0d0cec7d9e216028a0caccfbb76838514d4a7b