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/core/CL/CLHelpers.h b/arm_compute/core/CL/CLHelpers.h
index 66423d6..d239a61 100644
--- a/arm_compute/core/CL/CLHelpers.h
+++ b/arm_compute/core/CL/CLHelpers.h
@@ -35,11 +35,11 @@
 enum class DataType;
 enum class GPUTarget;
 
-/** Enable operation operations on GPUTarget enumerations */
+/** Enable bitwise operations on GPUTarget enumerations */
 template <>
 struct enable_bitwise_ops<arm_compute::GPUTarget>
 {
-    static constexpr bool value = true;
+    static constexpr bool value = true; /**< Enabled. */
 };
 
 /** Max vector width of an OpenCL vector */