examples/fips_validation: fix parsing of algorithms

Few of the NIST TDES test files don't contain TDES string.
Added indicators to identify such files. These indicators
are part of only NIST TDES test vector files.

Fixes: 527cbf3d5ee3 ("examples/fips_validation: support TDES parsing")
Cc: stable@dpdk.org
Signed-off-by: Archana Muniganti <marchana@marvell.com>
Signed-off-by: Ayuj Verma <ayverma@marvell.com>
Acked-by: Anoob Joseph <anoobj@marvell.com>