COMPMID-3377: Async support to NEElementwiseUnaryLayerKernel kernels/functions

Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Change-Id: I208287b44ece051e95f891d43a691cb0ac6e56c5
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3419
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/core/experimental/Types.h b/arm_compute/core/experimental/Types.h
index 2b55918..62dd6ff 100644
--- a/arm_compute/core/experimental/Types.h
+++ b/arm_compute/core/experimental/Types.h
@@ -50,29 +50,9 @@
     ACL_INT_2   = 52
 };
 
-/** Input tensor aggregate */
-struct InputTensor
-{
-    InputTensor(TensorType type, const ITensor *tensor)
-        : type(type), tensor(tensor)
-    {
-    }
-
-    TensorType     type{ TensorType::ACL_UNKNOWN };
-    const ITensor *tensor{ nullptr };
-};
-/** Output tensor aggregate */
-struct OutputTensor
-{
-    OutputTensor(TensorType type, ITensor *tensor)
-        : type(type), tensor(tensor)
-    {
-    }
-
-    TensorType type{ TensorType::ACL_UNKNOWN };
-    ITensor   *tensor{ nullptr };
-};
-using OperatorTensor = OutputTensor;
+using InputTensorMap    = std::map<TensorType, const ITensor *>;
+using OutputTensorMap   = std::map<TensorType, ITensor *>;
+using OperatorTensorMap = OutputTensorMap;
 
 namespace experimental
 {