[BUGFIX] Add missing label

Add missing label in permissions module.

Resolves: #68377
Releases: master
Change-Id: If5a645809eb24502a072d74e816ab36855cc1dfe
Reviewed-on: http://review.typo3.org/41721


Reviewed-by: Stefan Froemken <froemken@gmail.com>
Tested-by: Stefan Froemken <froemken@gmail.com>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>