D7722: Disable DDCUtil by default

[Jonathan Riddell]

jriddell added reviewers: Plasma, dvogel.

REPOSITORY
  R122 Powerdevil

REVISION DETAIL
  https://phabricator.kde.org/D7722

To: jriddell, #plasma, dvogel
Cc: plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, 
abetts, sebas, apol, mart