small fix to setup_host.sh (#957)
small fix to setup_host.sh (#957)


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