!6539 Only match the pattern of Conv2DBackproInput+ReluGradV2

Merge pull request !6539 from huanghui/fix-ub-fusion-conv2dbpinput-eltwise

mindspore/ccsrc/backend/optimizer/ascend/buffer_fusion/conv2dbackprop_eltwise_fusion_pass.cc

@@ -58,9 +58,7 @@ void Conv2DBackpropEltwiseFusionPass::MatchSingleFusionPattern(const session::Ke
     }
     auto cnode = node->cast<CNodePtr>();
     MS_EXCEPTION_IF_NULL(cnode);
-    if (AnfAlgo::GetKernelType(cnode) == KernelType::TBE_KERNEL &&
+    if (AnfAlgo::GetCNodeName(cnode) == kReluGradV2OpName) {
-        AnfAlgo::GetFusionType(cnode) == kernel::FusionType::ELEMWISE &&
-        (cnode->inputs().size() == ELTWISE_INPUT_SIZE || cnode->inputs().size() == ELTWISE_DOUBLE_IN_INPUT_SIZE)) {
       MatchConv2DBackpropInputEltwise(cnode, kernel_graph, candidate_fusion);
     }
   }