examples/fips_validation: fix unitialized variables
examples/fips_validation: fix unitialized variables

Fixed compilation issue with variable which may
be used uninitialized.

Fixes: 527cbf3d5ee3 ("examples/fips_validation: support TDES parsing")

Signed-off-by: Marko Kovacevic <32a723043e16bf2a3185e32c2e613ae1ee55288f@intel.com>

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