IVGCVSW-2051 Added unit tests in the Android NN Driver for the new
Mean layer

 * Added unit tests (in a new file test/1.1/Mean.cpp)
 * Refactored ArmnnDriverImpl to remove redundant tags in the log
   messages
 * Modified AddInputOperand to accept a quantized input tensor

Change-Id: Ie037ce426777daab28b0501124e1cc8686ad6184
diff --git a/test/DriverTestHelpers.hpp b/test/DriverTestHelpers.hpp
index cce220e..370936f 100644
--- a/test/DriverTestHelpers.hpp
+++ b/test/DriverTestHelpers.hpp
@@ -146,6 +146,7 @@
 {
     Operand op    = {};
     op.type       = operandType;
+    op.scale      = operandType == OperandType::TENSOR_QUANT8_ASYMM ? 1.f / 255.f : 0.f;
     op.dimensions = dimensions;
     op.lifetime   = OperandLifeTime::MODEL_INPUT;