Add the necessary Android.bp file and fix the compile error for the new
bpf project.
Fix the run time restart false alarm in bpf loader.
Bug: 112334572
Test: device boot and dumpsys netd show eBPF object okay, runtime
restart netd and no bpfloader error showed in logcat.
Change-Id: Iae193bda45e50b7d22479086d6403e3c4fb185c4
Copied the files from system/netd into system/bpf. No modification is
made to the files.
Test: this doesn't build since the Android.bp file is missing
Bug: 112334572
Change-Id: Ia090a429dd416e07c46766784fb3dd2037201525