+ some fixes to do the enable


mysql-test/r/rpl_ndb_sync.result:
  enabled test case
mysql-test/t/disabled.def:
  enabled test case
sql/ha_ndbcluster.cc:
  enabled test case
sql/ha_ndbcluster_tables.h:
  add defines for old sys table
storage/ndb/tools/restore/Restore.cpp:
  add check for old sys table