fixed erroneous error message - set auto increment was done even if create table failed so real error message got lost behind "table not found"
    and simplified code a bit


ndb/src/kernel/vm/Configuration.cpp:
  corrected some erroneous size calculations
ndb/src/ndbapi/NdbDictionaryImpl.cpp:
  fixed erroneous error message - set auto increment was done even if create table failed so real error message got lost behind "table not found"
  and simplified code a bit