Merge of the normal Dropbear makefile: - Don't include mpi.o, since it does Bad Things (tm) (wrt LTM) - Don't try to make clean in tests if it doesn't exist (infinite looping makefiles, mmmmm)

/* test pmac/omac/hmac */
#include "test.h"

int mac_test(void)
{
   DO(hmac_test());
   DO(pmac_test());
   DO(omac_test());
   DO(eax_test());
   DO(ocb_test());
   return 0;
}