zero the from and to pcie trace write addrs
zero the from and to pcie trace write addrs

Change-Id: I95fb82da447d9050877b2f5e944a5c43691fd28f

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