[TASK] Duplicate mime type declaration FlowPlayerContentObject

* Fix duplicate array key in $mimeTypes for 'swa'
* Order the keys alphabetically, which can help to avoid duplicate keys

Resolves: #68332
Releases: master
Change-Id: Id242a9709c0bfb4ae1885b72eeeef419b35713ab
Reviewed-on: http://review.typo3.org/41658


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>