restructure Zc706Top.bsv to match ZynqTop.bsv
restructure Zc706Top.bsv to match ZynqTop.bsv

Change-Id: Idd3fb250673963a4728a92aaff40236a15ff8815

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