The NIST test vectors use the string 'PTlen' to denote text lengths
in case of encrypt & decrypt operations. So the same string needs to be
used while parsing PT and CT.
Fixes: 2adb3b4e7e ("examples/fips_validation: fix AES-GCM cipher length parsing")
Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>