[BUGFIX] Make TypoScript option config.noScaleUp work again

A former commit introduced a bug, which makes `config.noScaleUp`
useless. This commit fixes the regression introduced in
https://review.typo3.org/#/c/42385/ by making the option work again.

Change-Id: Ia72a605bf6f2740ca66012f84cf2723e42eaabcb
Releases: master
Resolves: #78134
Reviewed-on: https://review.typo3.org/50236


Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>