Added guards for Audio and Video build commands in setup.py
Added guards for Audio and Video build commands in setup.py

Xilinx/PYNQ,yunqu/PYNQ,yunqu/PYNQ,Xilinx/PYNQ,cathalmccabe/PYNQ,schelleg/PYNQ,cathalmccabe/PYNQ,schelleg/PYNQ,yunqu/PYNQ,schelleg/PYNQ,schelleg/PYNQ,schelleg/PYNQ,yunqu/PYNQ,cathalmccabe/PYNQ,Xilinx/PYNQ,cathalmccabe/PYNQ,yunqu/PYNQ,Xilinx/PYNQ,cathalmccabe/PYNQ,Xilinx/PYNQ,cathalmccabe/PYNQ