[move sift.cpp] xfeatures2d: use updated TLS API

original commit: https://github.com/opencv/opencv_contrib/commit/3e4fb8f415ba68c56ba2cded1ab10a75c46d342e

modules/features2d/src/sift.cpp

@@ -74,6 +74,8 @@
 #include <stdarg.h>
 #include <opencv2/core/hal/hal.hpp>
 
+#include <opencv2/core/utils/tls.hpp>
+
 namespace cv
 {
 
@@ -672,7 +674,7 @@ void SIFT_Impl::findScaleSpaceExtrema( const std::vector<Mat>& gauss_pyr, const
     const int threshold = cvFloor(0.5 * contrastThreshold / nOctaveLayers * 255 * SIFT_FIXPT_SCALE);
 
     keypoints.clear();
-    TLSData<std::vector<KeyPoint> > tls_kpts_struct;
+    TLSDataAccumulator<std::vector<KeyPoint> > tls_kpts_struct;
 
     for( int o = 0; o < nOctaves; o++ )
         for( int i = 1; i <= nOctaveLayers; i++ )