flag test.o bpf program as being test only am: c8e40c149f

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2264521

Change-Id: I562f35c2207d669e9e0c12e561fb4e836d9e3b60
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>