src/bin/code/vhdl/topvhdl.py: fix declaration bug
src/bin/code/vhdl/topvhdl.py: fix declaration bug

Martoni/periphondemand,trabucayre/periphondemand,trabucayre/periphondemand,Martoni/periphondemand,trabucayre/periphondemand,Martoni/periphondemand