testing: Migrated ikev2 scenarios to new default plugins

testing/tests/ikev2/net2net-pkcs12/description.txt

@@ -1,5 +1,7 @@
 A connection between the subnets behind the gateways <b>moon</b> and <b>sun</b> is set up.
-The authentication is based on <b>X.509 certificates</b>.
+The authentication is based on an RSA private key, a matching X.509 end entity
+certificate and the issuing X.509 root CA certificate, all stored in a <b>PKCS12</b>
+container.
 <p/>
 Upon the successful establishment of the IPsec tunnel, the updown script automatically
 inserts iptables-based firewall rules that let pass the tunneled traffic.

testing/tests/ikev2/net2net-pkcs12/hosts/moon/etc/strongswan.conf

@@ -1,9 +1,9 @@
 # /etc/strongswan.conf - strongSwan configuration file
 
 swanctl {
-  load = random aes sha1 sha2 hmac kdf pem pkcs1 pkcs7 pkcs8 pkcs12 gmp x509 revocation constraints
+  load = random pem pkcs1 openssl revocation constraints
 }
 
 charon-systemd {
-  load = random nonce aes sha1 sha2 hmac kdf pem pkcs1 gmp x509 revocation curve25519 curl kernel-netlink socket-default updown vici
+  load = random nonce openssl pem pkcs1 revocation curl kernel-netlink socket-default updown vici
 }

testing/tests/ikev2/net2net-pkcs12/hosts/sun/etc/strongswan.conf

@@ -1,9 +1,9 @@
 # /etc/strongswan.conf - strongSwan configuration file
 
 swanctl {
-  load = random aes sha1 sha2 hmac kdf pem pkcs1 pkcs7 pkcs8 pkcs12 gmp x509 revocation constraints
+  load = random pem pkcs1 openssl revocation constraints
 }
 
 charon-systemd {
-  load = random nonce aes sha1 sha2 hmac kdf pem pkcs1 gmp x509 revocation curve25519 curl kernel-netlink socket-default updown vici
+  load = random nonce openssl pem pkcs1 revocation curl kernel-netlink socket-default updown vici
 }