Merge "libbinder_ndk_unit_test: avoid race" into main am: bb9be55f02

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2681477

Change-Id: Ibb4ae76d660382e199385d2a39652e3f95818e5d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>