Fix warnings during wrapper docs generation (#1192)

* Fix warnings during wrapper docs generation

* Fixes

include/ck/wrapper/utils/layout_utils.hpp

@@ -17,11 +17,14 @@
 #include "ck/tensor_description/multi_index_transform_helper.hpp"
 #include "ck/tensor_operation/gpu/device/matrix_padder.hpp"
 
+// Disable from doxygen docs generation
+/// @cond INTERNAL
 namespace ck {
 namespace wrapper {
+/// @endcond
 
 // Disable from doxygen docs generation
-/// @cond
+/// @cond INTERNAL
 // forward declaration
 template <typename Shape, typename UnrolledDescriptorType>
 struct Layout;