Fix doxygen references to new kernels

Resolves COMPMID-4117

Change-Id: I9945a92402e34b9cfe0ba9ef2a961b168bf62721
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4883
Reviewed-by: Pablo Marquez Tello <pablo.tello@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/runtime/cpu/operators/CpuAdd.h b/src/runtime/cpu/operators/CpuAdd.h
index 7ddc69b..8ae7833 100644
--- a/src/runtime/cpu/operators/CpuAdd.h
+++ b/src/runtime/cpu/operators/CpuAdd.h
@@ -30,7 +30,7 @@
 {
 namespace cpu
 {
-/** Basic function to run @ref CpuAddKernel */
+/** Basic function to run @ref kernels::CpuAddKernel */
 class CpuAdd : public ICpuOperator
 {
 public:
@@ -60,7 +60,7 @@
      *
      */
     void configure(const ITensorInfo *src0, const ITensorInfo *src1, ITensorInfo *dst, ConvertPolicy policy, const ActivationLayerInfo &act_info = ActivationLayerInfo());
-    /** Static function to check if given info will lead to a valid configuration of @ref CpuAddKernel
+    /** Static function to check if given info will lead to a valid configuration of @ref CpuAdd
      *
      * @param[in] src0     First input tensor info. Data types supported: U8/QASYMM8/QASYMM8_SIGNED/S16/QSYMM16/F16/S32/F32
      * @param[in] src1     Second input tensor info. Data types supported: U8/QASYMM8/QASYMM8_SIGNED/S16/QSYMM16/F16/S32/F32