Refs 100707 Add missing ccns_slice_set_topo_prefix() to sync.h
Refs 100707 Add missing ccns_slice_set_topo_prefix() to sync.h

svartika/ccnx,ebollens/ccnmp,ebollens/ccnmp,svartika/ccnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,cawka/ndnx,ebollens/ccnmp,svartika/ccnx,cawka/ndnx,cawka/ndnx,cawka/ndnx,svartika/ccnx,ebollens/ccnmp,cawka/ndnx