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/NEON/kernels/NEAccumulateKernel.h b/arm_compute/core/NEON/kernels/NEAccumulateKernel.h
index ad5a16c..82a4199 100644
--- a/arm_compute/core/NEON/kernels/NEAccumulateKernel.h
+++ b/arm_compute/core/NEON/kernels/NEAccumulateKernel.h
@@ -101,6 +101,7 @@
     void run(const Window &window, const ThreadInfo &info) override;
 };
 #else  /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */
+/** Interface for the accumulate weighted kernel using F16 */
 using NEAccumulateWeightedFP16Kernel = NEAccumulateWeightedKernel;
 #endif /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */