load plugins for scepclient

testing/tests/ikev2/default-keys/hosts/carol/etc/strongswan.conf

@@ -3,3 +3,7 @@
 charon {
   load = curl aes des sha1 sha2 md5 gmp random x509 pubkey hmac xcbc stroke kernel-netlink updown
 }
+
+scepclient {
+  load = sha1 sha2 md5 aes des hmac random
+}

testing/tests/ikev2/default-keys/hosts/moon/etc/strongswan.conf

@@ -3,3 +3,7 @@
 charon {
   load = curl aes des sha1 sha2 md5 gmp random x509 pubkey hmac xcbc stroke kernel-netlink updown
 }
+
+scepclient {
+  load = sha1 sha2 md5 aes des hmac random
+}