Change *Service::SERVICE_PORT to *Service::PORT

Turning on the new AIDL lint for redeundant prefixes causes this to be
an error in this module.

Test: m com.android.microdroid.testservice-cpp
Bug: 268551304
Change-Id: Ibd63d0392c1f3c25c6c48f7e76ef08729b749313
diff --git a/tests/testapk/src/native/testbinary.cpp b/tests/testapk/src/native/testbinary.cpp
index d24ddfd..7e0fc5b 100644
--- a/tests/testapk/src/native/testbinary.cpp
+++ b/tests/testapk/src/native/testbinary.cpp
@@ -318,7 +318,7 @@
     auto testService = ndk::SharedRefBase::make<TestService>();
 
     auto callback = []([[maybe_unused]] void* param) { AVmPayload_notifyPayloadReady(); };
-    AVmPayload_runVsockRpcServer(testService->asBinder().get(), testService->SERVICE_PORT, callback,
+    AVmPayload_runVsockRpcServer(testService->asBinder().get(), testService->PORT, callback,
                                  nullptr);
 
     return {};