SQTK Plugin -- fix cmake 2.8.12 "all keyword" or "all plain" warnings

Change-Id: Ic02e36df3ecc3ced86eca3a3db090884ce2de35e
Merge topic 'sqtk-cmake-warnings' into next

4ac2bf8 SQTK Plugin -- fix cmake 2.8.12 "all keyword" or "all plain" warnings