match header file with bpf program Locations to change found via: https://source.corp.google.com/search?q=p:aosp-master%20(%5E%7C%5B%5E_%5D)bpf_tethering.h Core reasoning for this will be to match the .h naming that we'll have for netd.c and clatd.c once we get rid of bpf_shared.h Test: TreeHugger Signed-off-by: Maciej Żenczykowski <maze@google.com> Change-Id: I4154659c7fb23a37f5316a5c804fb2606d842e9c