COMPMID-1564: Add QASYMM8 on CLPixelwiseMultiplication

Change-Id: I5f719f5b2915c18cd0ca6271db401152112863a6
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/148982
Tested-by: bsgcomp <bsgcomp@arm.com>
Reviewed-by: Isabella Gottardi <isabella.gottardi@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Reviewed-by: Giuseppe Rossini <giuseppe.rossini@arm.com>
diff --git a/tests/validation/reference/PixelWiseMultiplication.h b/tests/validation/reference/PixelWiseMultiplication.h
index 1dce154..787a7b2 100644
--- a/tests/validation/reference/PixelWiseMultiplication.h
+++ b/tests/validation/reference/PixelWiseMultiplication.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 ARM Limited.
+ * Copyright (c) 2017-2018 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -35,7 +35,8 @@
 namespace reference
 {
 template <typename T1, typename T2>
-SimpleTensor<T2> pixel_wise_multiplication(const SimpleTensor<T1> &src1, const SimpleTensor<T2> &src2, float scale, ConvertPolicy convert_policy, RoundingPolicy rounding_policy);
+SimpleTensor<T2> pixel_wise_multiplication(const SimpleTensor<T1> &src1, const SimpleTensor<T2> &src2, float scale,
+                                           ConvertPolicy convert_policy, RoundingPolicy rounding_policy, QuantizationInfo qout = QuantizationInfo());
 } // namespace reference
 } // namespace validation
 } // namespace test