fix(dnn/cuda): fix algo matmul for conv bwd filter

fix fastrun workspace size not available exception and device OOM error caused by the incorrect workspace size calculation of algo matmul of conv bwd filter

GitOrigin-RevId: de96b4fe117ed9691d4a5555261e9f10fa8d2ae4

dnn/src/cuda/convolution/backward_filter/matmul.cpp

@@ -21,11 +21,11 @@ using namespace cuda;
 
 namespace {
 std::pair<TensorLayoutArray, MatrixMulForward::Param> sub_opr_config(
-        const ConvolutionBackwardDataImpl::CanonizedFilterMeta& fm,
+        const ConvolutionBackwardFilterImpl::CanonizedFilterMeta& fm,
         const TensorLayout& src_layout, const TensorLayout& diff_layout,
         const TensorLayout& grad_layout,
         const ConvolutionBackwardFilterImpl* opr) {
-    size_t N = grad_layout.shape[0], IC = fm.icpg,
+    size_t N = src_layout.shape[0], IC = fm.icpg,
            OC = fm.ocpg, OH = diff_layout.shape[2],
            OW = diff_layout.shape[3], FH = fm.spatial[0],
            FW = fm.spatial[1];