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/Softmax.cpp b/src/armnnTfLiteParser/test/Softmax.cpp
index dacd946..c4d19f2 100644
--- a/src/armnnTfLiteParser/test/Softmax.cpp
+++ b/src/armnnTfLiteParser/test/Softmax.cpp
@@ -71,7 +71,7 @@
 
 BOOST_FIXTURE_TEST_CASE(ParseSoftmaxLite, SoftmaxFixture)
 {
-    RunTest<2, armnn::DataType::QuantisedAsymm8>(0, { 0, 0, 100, 0, 0, 0, 0 }, { 0, 0, 255, 0, 0, 0, 0 });
+    RunTest<2, armnn::DataType::QAsymmU8>(0, { 0, 0, 100, 0, 0, 0, 0 }, { 0, 0, 255, 0, 0, 0, 0 });
 }
 
 BOOST_AUTO_TEST_SUITE_END()