testing: Converterd tnc to systemd

testing/tests/tnc/tnccs-20-hcd-eap/hosts/alice/etc/strongswan.conf

@@ -1,17 +1,14 @@
 # /etc/strongswan.conf - strongSwan configuration file
 
-charon {
+charon-systemd {
   load = random nonce aes sha1 sha2 md5 pem pkcs1 gmp hmac x509 revocation curl vici socket-default kernel-netlink eap-identity eap-ttls eap-tnc tnc-pdp tnc-imv tnc-tnccs tnccs-20 sqlite
 
-  start-scripts {
-    creds = /usr/local/sbin/swanctl --load-creds 
-  }
   syslog {
     auth {
       default = 0
     }
     daemon {
-      tnc = 2 
+      tnc = 2
       imv = 3
     }
   }
@@ -36,5 +33,5 @@ charon {
 
 libimcv {
   debug_level = 3
-  policy_script = /usr/local/libexec/ipsec/imv_policy_manager 
+  policy_script = /usr/local/libexec/ipsec/imv_policy_manager
 }