bpfloader - add dependency on offload.o

Test: builds, atest, /system/etc/bpf/offload.o exists
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I043369f5e0ae4315dc8db0cf70dc8806e4997fe4

bpfloader/Android.bp

@@ -47,6 +47,7 @@ cc_binary {
     required: [
         "clatd.o",
         "netd.o",
+        "offload.o",
     ],
 
 }