Fix Bug 920 - JOCL does not work on windows with 32 bit vm (2/2)

All gluegen generated native function wrappers,
miss CL_API_CALL in the function declarations
similar to commit 569726132f622e290bebc5d40c96f8115dbcb5da.

Adding gluegen calling convention to cl-impl.cfg:
  LocalProcAddressCallingConvention __ALL__ CL_API_CALL

All tests passed on windows 32bit now!