add gyroscope for sensorfw backend
add gyroscope for sensorfw backend

Task-number: QTBUG-32754

Change-Id: I9037c20953d67584fdfeb4d0fabdfd73f919f14c
Reviewed-by: Thomas McGuire <2a8c2e178f359344f9cfed0db24d661e86eba971@kdab.com>
Reviewed-by: Alex Blasche <429ec4e831e8320529ddfedc4983cef56f3f7ae1@digia.com>

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