D8219: Move the git find_package call to where it's used

[David Edmundson]

davidedmundson accepted this revision.
This revision is now accepted and ready to land.

REPOSITORY
  R169 Kirigami

REVISION DETAIL
  https://phabricator.kde.org/D8219

To: arojas, mart, davidedmundson
Cc: plasma-devel, apol, davidedmundson, mart, hein