app/test: cleanup crypto code
app/test: cleanup crypto code

Cleanup the code for code design consistency.

Signed-off-by: Deepak Kumar Jain <9bf453c83e22b0c9e2b3754d419540ea41e2427f@intel.com>
Acked-by: Fiona Trahe <7ba562cc372916cd557d0be347608f8b4da4f746@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk