COMPMID-1008: Fix Doxygen issues

Change-Id: Ie73d8771f85d1f5b059f3a56f1bbd73c98e94a38
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/124723
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/runtime/CL/CLTuner.h b/arm_compute/runtime/CL/CLTuner.h
index 1c71709..c1fbfd2 100644
--- a/arm_compute/runtime/CL/CLTuner.h
+++ b/arm_compute/runtime/CL/CLTuner.h
@@ -71,7 +71,7 @@
 
     /** Give read access to the LWS table
      *
-     * return The lws table as unordered_map container
+     * @return The lws table as unordered_map container
      */
     const std::unordered_map<std::string, cl::NDRange> &lws_table() const;
 
@@ -83,6 +83,7 @@
      */
     void set_cl_kernel_event(cl_event kernel_event);
 
+    /** clEnqueueNDRangeKernel symbol */
     std::function<decltype(clEnqueueNDRangeKernel)> real_clEnqueueNDRangeKernel;
 
     /** Load the LWS table from file