COMPMID-417 - Bug Fix WarpPerspective kernel

Change-Id: Ic26fb3b1b60c1a1f4848d683862a25bd1ebc2cc8
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/82053
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Steven Niu <steven.niu@arm.com>
diff --git a/arm_compute/core/NEON/kernels/NEWarpKernel.h b/arm_compute/core/NEON/kernels/NEWarpKernel.h
index 10fed1d..39f6496 100644
--- a/arm_compute/core/NEON/kernels/NEWarpKernel.h
+++ b/arm_compute/core/NEON/kernels/NEWarpKernel.h
@@ -60,6 +60,9 @@
     // Inherited methods overridden:
     void run(const Window &window) override;
 
+    // Inherited methods overridden:
+    BorderSize border_size() const override;
+
 protected:
     /** function to perform warp affine or warp perspective on the given window when border mode == UNDEFINED
      *