message: gapi: fix ARM build
diff: @@ -125,7 +125,7 @@ struct tracked_cv_umat{
  struct scalar_wrapper_gpu
  {
  //FIXME reuse CPU (OpenCV) plugin code
  - scalar_wrapper_gpu(cv::gapi::own::Scalar& s) : m_s{cv::gapi::own::to_ocv(s)}, m_org_s{s} {};
  + scalar_wrapper_gpu(cv::gapi::own::Scalar& s) : m_s{cv::gapi::own::to_ocv(s)}, m_org_s(s) {};
  operator cv::Scalar& () { return m_s; }
  void writeBack() const { m_org_s = to_own(m_s); }
  