COMPMID-979: Add NHWC data layout to the tensor's metadata (Part 2)

Change-Id: I24aa35a85834abf0c9954aba714aeae654615b44
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/122646
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/arm_compute/core/Helpers.inl b/arm_compute/core/Helpers.inl
index ff85773..3db8369 100644
--- a/arm_compute/core/Helpers.inl
+++ b/arm_compute/core/Helpers.inl
@@ -370,9 +370,9 @@
     return index;
 }
 
-inline int get_data_layout_dimension_index(const ITensorInfo &info, const DataLayoutDimension data_layout_dimension)
+inline size_t get_data_layout_dimension_index(const DataLayout data_layout, const DataLayoutDimension data_layout_dimension)
 {
-    ARM_COMPUTE_ERROR_ON_MSG(info.data_layout() == DataLayout::UNKNOWN, "Cannot retrieve the dimension index for an unknown layout!");
+    ARM_COMPUTE_ERROR_ON_MSG(data_layout == DataLayout::UNKNOWN, "Cannot retrieve the dimension index for an unknown layout!");
 
     /* Return the index based on the data layout
      * [N C H W]
@@ -382,13 +382,13 @@
     switch(data_layout_dimension)
     {
         case DataLayoutDimension::CHANNEL:
-            return (info.data_layout() == DataLayout::NCHW) ? 2 : 0;
+            return (data_layout == DataLayout::NCHW) ? 2 : 0;
             break;
         case DataLayoutDimension::HEIGHT:
-            return (info.data_layout() == DataLayout::NCHW) ? 1 : 2;
+            return (data_layout == DataLayout::NCHW) ? 1 : 2;
             break;
         case DataLayoutDimension::WIDTH:
-            return (info.data_layout() == DataLayout::NCHW) ? 0 : 1;
+            return (data_layout == DataLayout::NCHW) ? 0 : 1;
             break;
         case DataLayoutDimension::BATCHES:
             return 3;