fixed compilation without CUDA

modules/gpu/src/denoising.cpp

@@ -51,6 +51,10 @@ void cv::gpu::bilateralFilter(const GpuMat&, GpuMat&, int, float, float, int, St
 void cv::gpu::nonLocalMeans(const GpuMat&, GpuMat&, float, int, int, int, Stream&) { throw_nogpu(); }
 void cv::gpu::fastNlMeansDenoising( const GpuMat&, GpuMat&, float, int, int, Stream&) { throw_nogpu(); }
 
+void cv::gpu::FastNonLocalMeansDenoising::simpleMethod(const GpuMat&, GpuMat&, float, int, int, Stream&) { throw_nogpu(); }
+void cv::gpu::FastNonLocalMeansDenoising::labMethod( const GpuMat&, GpuMat, float, float, int, int, Stream&) { throw_nogpu(); }
+
+
 #else
 
 //////////////////////////////////////////////////////////////////////////////////