Initialize mAddExtraTestVendorConfigs to false. am: fe49375ba9

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/3093715

Change-Id: I4cd086e6654b12229f113d1c16e7647592c766cd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>