Update namespace to match framework/ml/nn

Bug: 72448000
Test: make vts
Change-Id: I3543913561b33e4d1e9d960ec1f81624fb0a1e6b
Merged-In: I3543913561b33e4d1e9d960ec1f81624fb0a1e6b
(cherry picked from commit de16694a6079355867287e4613ae89123c224171)
diff --git a/neuralnetworks/1.1/vts/functional/GeneratedTests.cpp b/neuralnetworks/1.1/vts/functional/GeneratedTests.cpp
index 1f1cc7a..95c2b1a 100644
--- a/neuralnetworks/1.1/vts/functional/GeneratedTests.cpp
+++ b/neuralnetworks/1.1/vts/functional/GeneratedTests.cpp
@@ -31,7 +31,7 @@
 namespace neuralnetworks {
 
 namespace generated_tests {
-using ::generated_tests::MixedTypedExampleType;
+using ::test_helper::MixedTypedExampleType;
 extern void Execute(const sp<V1_1::IDevice>&, std::function<V1_1::Model(void)>,
                     std::function<bool(int)>, const std::vector<MixedTypedExampleType>&);
 }  // namespace generated_tests