let the performance tests of WarpPerspective pass

  * avoid misuse of vzeroupper on Visual Studio 2013 Update 5
  * add ifdef to avoid unattended optimization

modules/imgproc/src/imgwarp.cpp

@@ -2793,6 +2793,11 @@ public:
         ParallelLoopBody(), src(_src), dst(_dst), M(_M), interpolation(_interpolation),
         borderType(_borderType), borderValue(_borderValue)
     {
+#if defined(_MSC_VER) && _MSC_VER == 1800 /* MSVS 2013 */ && CV_AVX
+        // details: https://github.com/opencv/opencv/issues/11026
+        borderValue.val[2] = _borderValue.val[2];
+        borderValue.val[3] = _borderValue.val[3];
+#endif
     }
 
     virtual void operator() (const Range& range) const