Replace uses of non-standard C++:

* Variable-length array replaced with std::vector
* "and" replaced with "&&" (OK, this one is standard but MSVC doesn't
like it and it's inconsistent with the rest of the codebase)
* Replace u_int8_t with uint8_t

Change-Id: I7b968a2cfa85a5492a2a547364464c594efb067b
Signed-off-by: Rob Hughes <robert.hughes@arm.com>
diff --git a/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp b/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp
index 635eaf3..eefe628 100644
--- a/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp
+++ b/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp
@@ -161,7 +161,7 @@
                                    [&quantizationScale, &quantizationOffset](const std::string & s)
                                    {
                                        return boost::numeric_cast<uint8_t>(
-                                           armnn::Quantize<u_int8_t>(std::stof(s),
+                                           armnn::Quantize<uint8_t>(std::stof(s),
                                                                      quantizationScale,
                                                                      quantizationOffset));
                                    });