fixed zipping xilinx for xsim
fixed zipping xilinx for xsim

cambridgehackers/connectal,cambridgehackers/connectal,csail-csg/connectal,hanw/connectal,cambridgehackers/connectal,hanw/connectal,chenm001/connectal,cambridgehackers/connectal,csail-csg/connectal,chenm001/connectal,csail-csg/connectal,hanw/connectal,hanw/connectal,hanw/connectal,chenm001/connectal,csail-csg/connectal,csail-csg/connectal,chenm001/connectal,cambridgehackers/connectal,chenm001/connectal