Apply a patch by Jonas for NDB diskdata.


mysql-test/r/sp-code.result:
  Fix a test result after merge: 94 and 95 are SQLCOM codes of 
  SQLCOM_CALL. New commands were added in 5.1 so SQLCOM_CALL got
  renumbered.
storage/ndb/src/kernel/blocks/ndbfs/AsyncFile.cpp:
  Apply second patch by Jonas to make NDB diskdata work on systems
  without O_DIRECT support.