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/backends/backendsCommon/test/WorkloadDataValidation.cpp b/src/backends/backendsCommon/test/WorkloadDataValidation.cpp
index b5acd88..3c47eab 100644
--- a/src/backends/backendsCommon/test/WorkloadDataValidation.cpp
+++ b/src/backends/backendsCommon/test/WorkloadDataValidation.cpp
@@ -615,7 +615,7 @@
     const TensorShape weightShape{ cOutput, cInput,  hInput,  wInput  };
     const TensorShape biasShape  { cOutput                            };
 
-    constexpr DataType inputType  = DataType::QuantisedAsymm8;
+    constexpr DataType inputType  = DataType::QAsymmU8;
     constexpr DataType weightType = DataType::QuantizedSymm8PerAxis;
     constexpr DataType biasType   = DataType::Signed32;