NNAPI VTS fix from NNAPI CL: Cleanup HalInterfaces.h

Prior to this CL, HalInterfaces.h polluted the global namespace through
the "using" declarations. To fix b/72880287, those names were put in a
new ::android::nn::hal namespace. This CL fixes the compilation errors
that occur due to this cleanup.

Bug: 72880287
Test: mma
Change-Id: Idb228e37615af7c0343a09f9a51de378e63bdb5a
Merged-In: Idb228e37615af7c0343a09f9a51de378e63bdb5a
(cherry picked from commit 4745a3d96edcf43536ee0d39e1bef17c19a44262)
diff --git a/neuralnetworks/1.2/vts/functional/ValidateRequest.cpp b/neuralnetworks/1.2/vts/functional/ValidateRequest.cpp
index a7e8328..cf5905f 100644
--- a/neuralnetworks/1.2/vts/functional/ValidateRequest.cpp
+++ b/neuralnetworks/1.2/vts/functional/ValidateRequest.cpp
@@ -35,6 +35,7 @@
 namespace vts {
 namespace functional {
 
+using ::android::hardware::neuralnetworks::V1_0::RequestArgument;
 using ::android::hardware::neuralnetworks::V1_2::implementation::ExecutionCallback;
 using ::android::hidl::memory::V1_0::IMemory;
 using test_helper::for_all;