[BUGFIX] Show correct default value of field type 'select' and MM relation

Given a field with TCA type "select" and a mm relation,
the selected categories of the default record are not shown
in the translated record.

Reason is because the uid is not transferred to the
BackendUtility::getProcessedValue method.

Resolves: #62397
Releases: master, 6.2
Change-Id: I4c98267e9d246c9b7efeaba2cdcecd7873e9feeb
Reviewed-on: http://review.typo3.org/35498
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>