COMPMID-3280: Make all ML primitives for CL use the new interface - Part1 - Fix2

- const fix in the CLKernels part 2

Change-Id: Ia12845e291b4137cbaf76eb8438e381c4fd0368a
Signed-off-by: Manuel Bottini <manuel.bottini@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3071
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/core/CL/kernels/CLMedian3x3Kernel.h b/arm_compute/core/CL/kernels/CLMedian3x3Kernel.h
index df40fcf..c68ab07 100644
--- a/arm_compute/core/CL/kernels/CLMedian3x3Kernel.h
+++ b/arm_compute/core/CL/kernels/CLMedian3x3Kernel.h
@@ -50,7 +50,7 @@
      * @param[out] output           The output tensor. Data types supported: U8.
      * @param[in]  border_undefined True if the border mode is undefined. False if it's replicate or constant.
      */
-    void configure(CLCompileContext &compile_context, const ICLTensor *input, ICLTensor *output, bool border_undefined);
+    void configure(const CLCompileContext &compile_context, const ICLTensor *input, ICLTensor *output, bool border_undefined);
 
     // Inherited methods overridden:
     BorderSize border_size() const override;