Rename quantized data types to remove ambiguity for signed/unsigned payloads

!android-nn-driver:2572

Change-Id: I8fe52ceb09987b3d05c539409510f535165455cc
Signed-off-by: Derek Lamberti <derek.lamberti@arm.com>
diff --git a/src/armnnTfLiteParser/test/Addition.cpp b/src/armnnTfLiteParser/test/Addition.cpp
index 94389d3..deeb707 100644
--- a/src/armnnTfLiteParser/test/Addition.cpp
+++ b/src/armnnTfLiteParser/test/Addition.cpp
@@ -97,7 +97,7 @@
 
 BOOST_FIXTURE_TEST_CASE(SimpleAdd, SimpleAddFixture)
 {
-  RunTest<2, armnn::DataType::QuantisedAsymm8>(
+  RunTest<2, armnn::DataType::QAsymmU8>(
       0,
       {{"inputTensor1", { 0, 1, 2, 3 }},
       {"inputTensor2", { 4, 5, 6, 7 }}},