Align kernel/operator header layout

- Redirect validate documentation to configure
- Align header names
- Align class layout

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: Ia40f67383826a66e9f9a33745d66805551e31a3a
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5897
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
diff --git a/src/runtime/gpu/cl/operators/ClCopy.h b/src/runtime/gpu/cl/operators/ClCopy.h
index 0b99676..e8ea812 100644
--- a/src/runtime/gpu/cl/operators/ClCopy.h
+++ b/src/runtime/gpu/cl/operators/ClCopy.h
@@ -36,8 +36,6 @@
 class ClCopy : public IClOperator
 {
 public:
-    /** Constructor */
-    ClCopy() = default;
     /** Initialise the function's source and destination.
      *
      * @param[in]  compile_context The compile context to be used.
@@ -47,11 +45,9 @@
      *
      */
     void configure(const CLCompileContext &compile_context, ITensorInfo *src, ITensorInfo *dst, Window *dst_window = nullptr);
-    /** Static function to check if given info will lead to a valid configuration of @ref kernels::ClCopyKernel
+    /** Static function to check if given info will lead to a valid configuration
      *
-     * @param[in] src        Source tensor info. Data types supported: All.
-     * @param[in] dst        Output tensor info. Data types supported: Same as @p src.
-     * @param[in] dst_window (Optional) Window to be used in case only copying into part of a tensor. Default is nullptr.
+     * Similar to @ref ClCopy::configure()
      *
      * @return a status
      */