arm_compute v18.01

Change-Id: I9bfa178c2e38bfd5fc812e62aab6760d87748e05
diff --git a/tests/validation/reference/FullyConnectedLayer.cpp b/tests/validation/reference/FullyConnectedLayer.cpp
index c24881e..5384715 100644
--- a/tests/validation/reference/FullyConnectedLayer.cpp
+++ b/tests/validation/reference/FullyConnectedLayer.cpp
@@ -138,7 +138,7 @@
 
         acc = asymm_rounding_divide_by_pow2(asymm_int_mult(acc, output_multiplier), output_shift);
         acc += output_offset;
-        acc = clamp<int32_t>(acc, 0, 255);
+        acc = utility::clamp<int32_t>(acc, 0, 255);
 
         // Store the result
         dst_ptr[y] = static_cast<uint8_t>(acc);