COMPMID-3221: Add EltwiseLayerDescriptor

A new descriptor struct for EltwiseLayerNode is added to have better
extendability.

Change-Id: I3d0a4b3cec1f2425f39157cee6b5c344336412a3
Signed-off-by: Sang-Hoon Park <sang-hoon.park@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/2876
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
diff --git a/src/graph/nodes/EltwiseLayerNode.cpp b/src/graph/nodes/EltwiseLayerNode.cpp
index 7970bad..a83a5fb 100644
--- a/src/graph/nodes/EltwiseLayerNode.cpp
+++ b/src/graph/nodes/EltwiseLayerNode.cpp
@@ -30,8 +30,8 @@
 {
 namespace graph
 {
-EltwiseLayerNode::EltwiseLayerNode(EltwiseOperation op, QuantizationInfo out_quant_info, ConvertPolicy c_policy, RoundingPolicy r_policy)
-    : _op(op), _out_quant_info(out_quant_info), _convert_policy(c_policy), _rounding_policy(r_policy)
+EltwiseLayerNode::EltwiseLayerNode(const descriptors::EltwiseLayerDescriptor &descriptor)
+    : descriptor(descriptor)
 {
     _input_edges.resize(2, EmptyEdgeID);
     _outputs.resize(1, NullTensorID);
@@ -39,17 +39,17 @@
 
 EltwiseOperation EltwiseLayerNode::eltwise_operation() const
 {
-    return _op;
+    return descriptor.op;
 }
 
 ConvertPolicy EltwiseLayerNode::convert_policy() const
 {
-    return _convert_policy;
+    return descriptor.c_policy;
 }
 
 RoundingPolicy EltwiseLayerNode::rounding_policy() const
 {
-    return _rounding_policy;
+    return descriptor.r_policy;
 }
 
 bool EltwiseLayerNode::forward_descriptors()
@@ -66,16 +66,16 @@
 
 TensorDescriptor EltwiseLayerNode::configure_output(size_t idx) const
 {
-    ARM_COMPUTE_UNUSED(idx, _op, _convert_policy, _rounding_policy);
+    ARM_COMPUTE_UNUSED(idx);
 
     const Tensor *src = input(0);
     ARM_COMPUTE_ERROR_ON(src == nullptr);
 
     auto output_info = src->desc();
 
-    if(!_out_quant_info.empty())
+    if(!descriptor.out_quant_info.empty())
     {
-        output_info.set_quantization_info(_out_quant_info);
+        output_info.set_quantization_info(descriptor.out_quant_info);
     }
 
     return output_info;