fix length of NDB$PK in unique index table


storage/ndb/tools/config.cpp:
  Rename: ndb/tools/config.cpp -> storage/ndb/tools/config.cpp
sql/ha_innodb.h:
  fix g++ compile error
sql/ha_ndbcluster.h:
  fix g++ compile error
storage/ndb/src/kernel/blocks/dbtc/DbtcMain.cpp:
  fix length of NDB$PK in index table