[SECURITY][TASK] Blind more options in the configuration module

The database credentials should not be shown in the configuration module.

Change-Id: I6037f343d9e6932e1293e463fe513e793e948762
Resolves: #71706
Resolves: #68905
Releases: master, 6.2
Reviewed-on: https://review.typo3.org/44807


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Martin Kutschker <martin.kutschker@ymail.com>
Tested-by: Martin Kutschker <martin.kutschker@ymail.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>