[BUGFIX] EXT:form - Wrong radio/ checkbox handling if no value is set

Do not mark a radio or checkbox as selected, if no "value" property
is set within the configuration and no incoming data exists.

Resolves: #70278
Releases: master
Change-Id: I5d9b1344d1581fb42b9d39bf0834a62fe56d252d
Reviewed-on: http://review.typo3.org/43707


Reviewed-by: Bjoern Jacob <bjoern.jacob@tritum.de>
Tested-by: Bjoern Jacob <bjoern.jacob@tritum.de>
Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Tested-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Josef Glatz <jousch@gmail.com>
Tested-by: Josef Glatz <jousch@gmail.com>
Reviewed-by: Frans Saris <franssaris@gmail.com>
Tested-by: Frans Saris <franssaris@gmail.com>