Some Doxygen fixes.

src/libcharon/plugins/eap_radius/radius_server.h

@@ -79,6 +79,7 @@ struct radius_server_t {
  * @param server			server address
  * @param port				server port
  * @param nas_identifier	NAS-Identifier to use with this server
+ * @param secret			secret to use with this server
  * @param sockets			number of sockets to create in pool
  * @param preference		preference boost for this server
  */

src/libcharon/plugins/eap_tls/eap_tls.h

@@ -14,7 +14,7 @@
  */
 
 /**
- * @defgroup eap_tls eap_tls
+ * @defgroup eap_tls_i eap_tls
  * @{ @ingroup eap_tls
  */