IVGCVSW-6838 Disable Import/Export by default in the Android-NN-Driver

Signed-off-by: David Monahan <David.Monahan@arm.com>
Change-Id: If873ed691e1878e8b0c1dc52717b4418a178c72f
diff --git a/ArmnnPreparedModel.hpp b/ArmnnPreparedModel.hpp
index 505538a..b9d89d4 100644
--- a/ArmnnPreparedModel.hpp
+++ b/ArmnnPreparedModel.hpp
@@ -42,8 +42,8 @@
                        const bool gpuProfilingEnabled,
                        const bool asyncModelExecutionEnabled = false,
                        const unsigned int numberOfThreads = 1,
-                       const bool importEnabled = true,
-                       const bool exportEnabled = true);
+                       const bool importEnabled = false,
+                       const bool exportEnabled = false);
 
     virtual ~ArmnnPreparedModel();