IVGCVSW-5485 'Add CacheLoadedNetwork options to Android NN Driver'

* Added Flatbuffers dependency to android-nn-driver
* Added CacheLoadedNetwork options to android-nn-driver
  Options will be android.hardware.neuralnetworks@1.3-service-armnn -v -c GpuAcc -n arm-armnn -s -q <file_path> &

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I2cdf0b84062cb1c6ad4346cd64b00161cfe85920
diff --git a/1.2/ArmnnDriverImpl.cpp b/1.2/ArmnnDriverImpl.cpp
index 6d713e0..d5539bc 100644
--- a/1.2/ArmnnDriverImpl.cpp
+++ b/1.2/ArmnnDriverImpl.cpp
@@ -132,7 +132,9 @@
 
     armnn::BackendOptions gpuAcc("GpuAcc",
     {
-        { "FastMathEnabled", options.IsFastMathEnabled() }
+        { "FastMathEnabled", options.IsFastMathEnabled() },
+        { "SaveCachedNetwork", options.SaveCachedNetwork() },
+        { "CachedNetworkFilePath", options.GetCachedNetworkFilePath() }
     });
     armnn::BackendOptions cpuAcc("CpuAcc",
     {