test_libFLAC/md5.c : Fix the tests.

The previous version of this test worked on amd64 and powerpc64 but
failed on armhf. Investigation show that the previous version of the
test data was generated for a case where the ARRAY_LEN macro was
exploiting undefined behaviour.
Fix was ditching the ARRAY_LEN macro and then recalculating the
target data.
1 file changed