net/iavf: fix security session destroy

Replace mempool_put with memset 0, the internal session memory block
is no longer allocated from a mempool

Fixes: 3f3fc3308b ("security: remove private mempool usage")

Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>

drivers/net/iavf/iavf_ipsec_crypto.c

@@ -1034,7 +1034,7 @@ iavf_ipsec_crypto_session_destroy(void *device,
 		return -EINVAL;
 
 	ret = iavf_ipsec_crypto_sa_del(adapter, iavf_sess);
-	rte_mempool_put(rte_mempool_from_obj(iavf_sess), (void *)iavf_sess);
+	memset(iavf_sess, 0, sizeof(struct iavf_security_session));
 	return ret;
 }