bpf_progs: explicitly set btf to false on offload.o & test.o am: adf18d23f5

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3193072

Change-Id: Id81ec279e38f05dd5b9f37754d62e79e28330551
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>