Enable GEMM activation fusions on MCDM (#18372)

### Description
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### Motivation and Context
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Co-authored-by: Jeff Bloomfield <[email protected]>

onnxruntime/core/providers/dml/DmlExecutionProvider/src/Operators/OperatorUtility.cpp

@@ -154,13 +154,13 @@ namespace Dml
             OperatorInfo{ "MeanVarianceNormalization", onnxruntime::kOnnxDomain, OnnxOperatorSet7::sc_sinceVer_MeanVarianceNormalization },
             OperatorInfo{ "MeanVarianceNormalization", onnxruntime::kOnnxDomain, OnnxOperatorSet9::sc_sinceVer_MeanVarianceNormalization },
             OperatorInfo{ "MeanVarianceNormalization", onnxruntime::kOnnxDomain, OnnxOperatorSet13::sc_sinceVer_MeanVarianceNormalization },
-            OperatorInfo{ "Gemm",                      onnxruntime::kOnnxDomain, OnnxOperatorSet7::sc_sinceVer_Gemm },
-            OperatorInfo{ "Gemm",                      onnxruntime::kOnnxDomain, OnnxOperatorSet9::sc_sinceVer_Gemm },
-            OperatorInfo{ "Gemm",                      onnxruntime::kOnnxDomain, OnnxOperatorSet11::sc_sinceVer_Gemm },
-            OperatorInfo{ "Gemm",                      onnxruntime::kOnnxDomain, OnnxOperatorSet13::sc_sinceVer_Gemm },
-            OperatorInfo{ "MatMul",                    onnxruntime::kOnnxDomain, OnnxOperatorSet7::sc_sinceVer_MatMul },
-            OperatorInfo{ "MatMul",                    onnxruntime::kOnnxDomain, OnnxOperatorSet9::sc_sinceVer_MatMul },
-            OperatorInfo{ "MatMul",                    onnxruntime::kOnnxDomain, OnnxOperatorSet13::sc_sinceVer_MatMul },
+            OperatorInfo{ "Gemm",                      onnxruntime::kOnnxDomain, OnnxOperatorSet7::sc_sinceVer_Gemm, {}, true, {"Relu", "LeakyRelu"}  },
+            OperatorInfo{ "Gemm",                      onnxruntime::kOnnxDomain, OnnxOperatorSet9::sc_sinceVer_Gemm, {}, true, {"Relu", "LeakyRelu"}  },
+            OperatorInfo{ "Gemm",                      onnxruntime::kOnnxDomain, OnnxOperatorSet11::sc_sinceVer_Gemm, {}, true, {"Relu", "LeakyRelu"}  },
+            OperatorInfo{ "Gemm",                      onnxruntime::kOnnxDomain, OnnxOperatorSet13::sc_sinceVer_Gemm, {}, true, {"Relu", "LeakyRelu"}  },
+            OperatorInfo{ "MatMul",                    onnxruntime::kOnnxDomain, OnnxOperatorSet7::sc_sinceVer_MatMul, {}, true, {"Relu", "LeakyRelu"}  },
+            OperatorInfo{ "MatMul",                    onnxruntime::kOnnxDomain, OnnxOperatorSet9::sc_sinceVer_MatMul, {}, true, {"Relu", "LeakyRelu"}  },
+            OperatorInfo{ "MatMul",                    onnxruntime::kOnnxDomain, OnnxOperatorSet13::sc_sinceVer_MatMul, {}, true, {"Relu", "LeakyRelu"}  },
 
             // The filter for activation functions maps to what DML's fused op internally fuses at the shader level.
             OperatorInfo{ "Add",                       onnxruntime::kOnnxDomain, OnnxOperatorSet7::sc_sinceVer_Add, {"Relu", "LeakyRelu"} },