When tests are enabled, they're installed too.
When tests are enabled, they're installed too.

Otherwise we have to manually install tests after enabling then and
having them built.

Change-Id: Ie0ebe4f90284c0d14867304df48c75ff3cff04a4
Reviewed-by: Zsolt Simon <dbb9d37adfa61fa828ce71e291666a56f96e605b@nokia.com>

richardmg/qtsensors,richardmg/qtsensors,richardmg/qtsensors,kobolabs/qtsensors,kobolabs/qtsensors,mer-qt/qtsensors,mer-qt/qtsensors,mer-qt/qtsensors,mer-qt/qtsensors,kobolabs/qtsensors,mer-qt/qtsensors,richardmg/qtsensors,kobolabs/qtsensors,richardmg/qtsensors