Fix comments to reflect the hard expiry fields.
Fixes: ad7515a39f2a ("security: add SA lifetime configuration")
Cc: stable@dpdk.org
Reported-by: Thomas Monjalon <thomas@monjalon.net>
Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Reviewed-by: Morten Brørup <mb@smartsharesystems.com>