[BUGFIX] DBAL message for EM uses old flasmessage styling classes

Resolves: #62600
Releases: master
Change-Id: I494232aa223de15df076699af8af6dfcfe66f5a8
Reviewed-on: http://review.typo3.org/33691
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Frank Nägler <typo3@naegler.net>
Tested-by: Frank Nägler <typo3@naegler.net>