Merge "binderVendorDoubleLoadTest: stability assert" into main am: a36ab31 am: ccaeaf7

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/3434704

Change-Id: I3ec6ac04fe59079ae2103b4aad55b202c88478e6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

Author: Steven Moreland

libs/binder/ndk/tests/binderVendorDoubleLoadTest.cpp

@@ -30,6 +30,8 @@
 #include <gtest/gtest.h>
 #include <sys/prctl.h>
 
+static_assert(FLAG_PRIVATE_LOCAL != 0, "Build system configuration breaks stability");
+
 using namespace android;
 using ::android::binder::Status;
 using ::android::internal::Stability;