Port CLIm2ColKernel to ClIm2ColKernel

Resolves: COMPMID-4516

Change-Id: I6a6db66797fa801dfe1238fceca413277241d2ec
Signed-off-by: Manuel Bottini <manuel.bottini@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5946
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/gpu/cl/kernels/ClCol2ImKernel.h b/src/core/gpu/cl/kernels/ClCol2ImKernel.h
index 42d0a96..74a9027 100644
--- a/src/core/gpu/cl/kernels/ClCol2ImKernel.h
+++ b/src/core/gpu/cl/kernels/ClCol2ImKernel.h
@@ -37,7 +37,7 @@
 {
 /** Interface for the col2im reshaping kernel.
  *
- * Rearranges each matrix column into image blocks. It's the inverse operation of @ref CLIm2ColKernel.
+ * Rearranges each matrix column into image blocks. It's the inverse operation of @ref opencl::kernels::ClIm2ColKernel.
  *
  * For example, a vector of 9 elements can be reshaped to a block(image) of 3x3:
  *