[TASK] Icon update to reports app icon

Reports module: Overview:
Icon update to reports app icon

Resolves: #63253
Releases: master
Change-Id: Ie1dd7b6290012a6d4836319a193ccd102828388d
Reviewed-on: http://review.typo3.org/34768
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>