Fixed the vivado tests to properly cover their respective intents.
Fixed the vivado tests to properly cover their respective intents.

hgomersall/myhdl,hgomersall/myhdl,myhdl/myhdl,myhdl/myhdl,jandecaluwe/myhdl,jck/myhdl,josyb/myhdl,jandecaluwe/myhdl,myhdl/myhdl,jck/myhdl,juhasch/myhdl,juhasch/myhdl,jck/myhdl,hgomersall/myhdl,josyb/myhdl,josyb/myhdl,juhasch/myhdl,jandecaluwe/myhdl