[BUGIFX] News import is broken

The import of news item is broken since switching to "news".
The import of the link must be adapted to the IRRE structured
used by "news".

Resolves: #51207
Releases: 1.6
Change-Id: I9089627d20b439dbab1fa5d5324539ee0bcad2d8
Reviewed-on: https://review.typo3.org/30561
Reviewed-by: Francois Suter
Tested-by: Francois Suter