support $SERIALNO in run.pcietest, enabling the specification of which jtag i/f to use
support $SERIALNO in run.pcietest, enabling the specification of which jtag i/f to use

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