bpf_progs: explicitly set btf to false on offload.o & test.o am: adf18d23f5 am: 38caab0bfd

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

Change-Id: Ie2000fa84fdd616ea41dd51ce48b62596cb57340
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>