Make memset/copy functions state-less

Port following functions:
- NECopy
- NEFill
- NEPermute
- NEReshapeLayer

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: I75f3f837012abab79c7dde9a20a34f64f75571d8
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4800
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/cpu/kernels/CpuFloorKernel.h b/src/core/cpu/kernels/CpuFloorKernel.h
index 25d78c7..2680871 100644
--- a/src/core/cpu/kernels/CpuFloorKernel.h
+++ b/src/core/cpu/kernels/CpuFloorKernel.h
@@ -39,7 +39,7 @@
 public:
     CpuFloorKernel() = default;
     ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(CpuFloorKernel);
-    /** Set the source, destination of the kernel
+    /** Configure kernel for a given list of arguments
      *
      * @param[in]  src Source tensor. Data type supported: F16/F32.
      * @param[out] dst Destination tensor. Same as @p src