bpf: change NetBpfLoad rc file from 33 (T/U) to 31 (S/Sv2/T/U)

By itself this change is a no-op, as we don't actually *yet* start mdnsd_netbpfload.

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ic7665b3dd5716bd3bbdc96450a42e9b0c26441c9
diff --git a/Tethering/apex/Android.bp b/Tethering/apex/Android.bp
index 19dd492..3e7c697 100644
--- a/Tethering/apex/Android.bp
+++ b/Tethering/apex/Android.bp
@@ -111,7 +111,7 @@
     ],
     prebuilts: [
         "current_sdkinfo",
-        "netbpfload.33rc",
+        "netbpfload.31rc",
         "netbpfload.35rc",
         "ot-daemon.34rc",
     ],