modified echo to make compile of pcie parts conditional (otherwise the zynq build fails with unplaced ibuf/obuf elements from the pcie portions)
modified echo to make compile of pcie parts conditional
(otherwise the zynq build fails with unplaced ibuf/obuf elements
from the pcie portions)

chenm001/connectal,hanw/connectal,8l/connectal,csail-csg/connectal,cambridgehackers/connectal,cambridgehackers/connectal,csail-csg/connectal,hanw/connectal,chenm001/connectal,cambridgehackers/connectal,cambridgehackers/connectal,chenm001/connectal,8l/connectal,hanw/connectal,hanw/connectal,chenm001/connectal,8l/connectal,8l/connectal,8l/connectal,csail-csg/connectal,hanw/connectal,csail-csg/connectal,chenm001/connectal,cambridgehackers/connectal,csail-csg/connectal