Add lots of missing option types

nixos/modules/services/system/dbus.nix

@@ -77,6 +77,7 @@ in
       };
 
       packages = mkOption {
+        type = types.listOf types.path;
         default = [];
         description = ''
           Packages whose D-Bus configuration files should be included in

nixos/modules/services/system/nscd.nix

@@ -19,6 +19,7 @@ in
     services.nscd = {
 
       enable = mkOption {
+        type = types.bool;
         default = true;
         description = "Whether to enable the Name Service Cache Daemon.";
       };