[What] Add DeviceGemmBias

[Why] Because MakeArgumentPointer need bias, to keep vanilla interface, add new struct.

device_operation/include/device_gemm.hpp

@@ -36,6 +36,35 @@ template <typename AElementwiseOperation,
 using DeviceGemmPtr = std::unique_ptr<
     DeviceGemm<AElementwiseOperation, BElementwiseOperation, CElementwiseOperation>>;
 
+template <typename AElementwiseOperation,
+          typename BElementwiseOperation,
+          typename CElementwiseOperation>
+struct DeviceGemmBias : public BaseOperator
+{
+    virtual std::unique_ptr<BaseArgument>
+    MakeArgumentPointer(const void* p_a,
+                        const void* p_b,
+                        const void* p_bias,
+                        void* p_c,
+                        ck::index_t M,
+                        ck::index_t N,
+                        ck::index_t K,
+                        ck::index_t StrideA,
+                        ck::index_t StrideB,
+                        ck::index_t StrideC,
+                        AElementwiseOperation a_element_op,
+                        BElementwiseOperation b_element_op,
+                        CElementwiseOperation c_element_op) = 0;
+
+    virtual std::unique_ptr<BaseInvoker> MakeInvokerPointer() = 0;
+};
+
+template <typename AElementwiseOperation,
+          typename BElementwiseOperation,
+          typename CElementwiseOperation>
+using DeviceGemmBiasPtr = std::unique_ptr<
+    DeviceGemmBias<AElementwiseOperation, BElementwiseOperation, CElementwiseOperation>>;
+
 } // namespace device
 } // namespace tensor_operation
 } // namespace ck