[BUGFIX] Make levelAs of DirectoryViewHelper work

To calculate the level, the correct variable needs to be used.

Change-Id: Ic53b4475412d4b29c408af95371ef2416603d1f1
Resolves: #72543
Releases: master, 7.6
Reviewed-on: https://review.typo3.org/45957


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>

typo3/sysext/fluid_styled_content/Classes/ViewHelpers/Menu/DirectoryViewHelper.php

@@ -97,7 +97,7 @@ class DirectoryViewHelper extends AbstractViewHelper
                 $as => $pages
             );
             if (!empty($levelAs)) {
-                $variables[$levelAs] = $typoScriptFrontendController->register['ceMenuLevel'];
+                $variables[$levelAs] = $typoScriptFrontendController->register['ceMenuLevel_directory'];
             }
             $output = $this->renderChildrenWithVariables($variables);