bug #25296  Truncate table converts NDB disk based tables to in-memory tables: implemented ha_ndbcluster::update_create_info


mysql-test/r/ndb_dd_alter.result:
  ug #25296  Truncate table converts NDB disk based tables to in-memory tables: implemented ha_ndbcluster::update_create_info
mysql-test/t/ndb_dd_alter.test:
  ug #25296  Truncate table converts NDB disk based tables to in-memory tables: implemented ha_ndbcluster::update_create_info
sql/ha_ndbcluster.cc:
  ug #25296  Truncate table converts NDB disk based tables to in-memory tables: implemented ha_ndbcluster::update_create_info
sql/ha_ndbcluster.h:
  ug #25296  Truncate table converts NDB disk based tables to in-memory tables: implemented ha_ndbcluster::update_create_info