As part of Enterprise Manager 12c a complete set of default Reports deployed in BI Publisher is available after integrating BI Publisher with Enterprise Manager.
The paper describes the installation and integration of BI Publisher 11.1.1.6.0 with Enterprise Manager 12.1.0.2 and it is really as easy as 1,2,3…
In this paper I assume that you did a fresh install of EM 12.1.0.2, however if your EM environment is based on an upgrade from 12.1.0.1 to 12.1.0.2 please take notice of the documentation Post-Upgrade Steps to take after upgrading to BI Publisher to 11.1.1.6.0