Numerous coverage improvements and testbench fix
Created by: rosethompson
- Lint passes with 32-bit no D$, but many regressions fail.
- Added StoreStall back to csrc.
- Update the fpga scripts to use the new derivative configs.
- Improvement to ebu coverage. Also modified object dumps to include data segments.
- New coverage for ebu.
- Coverage updates.
- Fixed odd bug in the testbench which wasn't skipping signature check for coverage tests.