fixed compile time errors in gpu module (if one compiles without CUDA)

modules/gpu/src/arithm.cpp

@@ -66,7 +66,7 @@ double cv::gpu::norm(const GpuMat&, const GpuMat&, int) { throw_nogpu(); return
 void cv::gpu::flip(const GpuMat&, GpuMat&, int) { throw_nogpu(); }
 Scalar cv::gpu::sum(const GpuMat&) { throw_nogpu(); return Scalar(); }
 void cv::gpu::minMax(const GpuMat&, double*, double*) { throw_nogpu(); }
-void cv::gou::minMax(const GpuMat&, double*, double*, GpuMat&) { throw_nogpu(); }
+void cv::gpu::minMax(const GpuMat&, double*, double*, GpuMat&) { throw_nogpu(); }
 void cv::gpu::minMaxLoc(const GpuMat&, double*, double*, Point*, Point*) { throw_nogpu(); }
 void cv::gpu::LUT(const GpuMat&, const Mat&, GpuMat&) { throw_nogpu(); }
 void cv::gpu::exp(const GpuMat&, GpuMat&) { throw_nogpu(); }

modules/gpu/src/hog.cpp

@@ -52,6 +52,7 @@ bool cv::gpu::HOGDescriptor::checkDetectorSize() const { throw_nogpu(); return f
 void cv::gpu::HOGDescriptor::setSVMDetector(const vector<float>&) { throw_nogpu(); }
 void cv::gpu::HOGDescriptor::detect(const GpuMat&, vector<Point>&, double, Size, Size) { throw_nogpu(); }
 void cv::gpu::HOGDescriptor::detectMultiScale(const GpuMat&, vector<Rect>&, double, Size, Size, double, int) { throw_nogpu(); }
+void cv::gpu::HOGDescriptor::computeBlockHistograms(const GpuMat&) { throw_nogpu(); }
 void cv::gpu::HOGDescriptor::getDescriptors(const GpuMat&, Size, GpuMat&, int) { throw_nogpu(); }
 std::vector<float> cv::gpu::HOGDescriptor::getDefaultPeopleDetector() { throw_nogpu(); return std::vector<float>(); }
 std::vector<float> cv::gpu::HOGDescriptor::getPeopleDetector_48x96() { throw_nogpu(); return std::vector<float>(); }