Refactor generated NNAPI tests

See change I2c0366fb87c96851fa6e0f8fe9ceac012d8e3513

Bug: 136097638
Test: m VtsHalNeuralnetworksV1_0TargetTest
Test: m VtsHalNeuralnetworksV1_1TargetTest
Test: m VtsHalNeuralnetworksV1_2TargetTest
Test: m VtsHalNeuralnetworksV1_2CompatV1_0TargetTest
Change-Id: I6fdede028422145d313d46532b5d2154ef0d40bc
Merged-In: I6fdede028422145d313d46532b5d2154ef0d40bc
(cherry picked from commit 2bcfdc82a0172d42202d3b3bc4dab98d8cc0ff58)
diff --git a/neuralnetworks/1.1/vts/functional/GeneratedTestHarness.h b/neuralnetworks/1.1/vts/functional/GeneratedTestHarness.h
index ab71b2b..64b88dd 100644
--- a/neuralnetworks/1.1/vts/functional/GeneratedTestHarness.h
+++ b/neuralnetworks/1.1/vts/functional/GeneratedTestHarness.h
@@ -26,6 +26,7 @@
 namespace android {
 namespace hardware {
 namespace neuralnetworks {
+namespace V1_1 {
 namespace generated_tests {
 
 void Execute(const sp<V1_1::IDevice>& device, std::function<V1_1::Model(void)> create_model,
@@ -33,6 +34,7 @@
              const std::vector<::test_helper::MixedTypedExample>& examples);
 
 }  // namespace generated_tests
+}  // namespace V1_1
 }  // namespace neuralnetworks
 }  // namespace hardware
 }  // namespace android