IVGCVSW-619: Support for Cl u8 bounded Relu

Change-Id: I3c39ecbd36f06d5376c35ed4eb38dd73533ef97e
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/93686
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/arm_compute/core/SubTensorInfo.h b/arm_compute/core/SubTensorInfo.h
index 81a2702..3a88eba 100644
--- a/arm_compute/core/SubTensorInfo.h
+++ b/arm_compute/core/SubTensorInfo.h
@@ -186,6 +186,16 @@
         }
         _valid_region = std::move(valid_region);
     }
+    QuantizationInfo quantization_info() const override
+    {
+        ARM_COMPUTE_ERROR_ON(_parent == nullptr);
+        return _parent->quantization_info();
+    }
+    void set_quantization_info(QuantizationInfo quantization_info) override
+    {
+        ARM_COMPUTE_ERROR_ON(_parent == nullptr);
+        _parent->set_quantization_info(quantization_info);
+    }
 
 private:
     ITensorInfo *_parent;