ebtables: Convert to standalone build

 * There is no need to create 20 shared libraries on an Android
   build. Convert to a standalone build to eliminate this noise.
 * Additionally, the scriptage in the Android makefile causes
   Ninja to regenerate it's configuration for every build. Fix it.
 * These files can be generated by the standard makefile as part
   of the "static" target.

Change-Id: I1de9f93caf563c10f49c72a884b4c96aaf5335e0
diff --git a/extensions/ebt_ulog.c b/extensions/ebt_ulog.c
index 162586d..5c2896a 100644
--- a/extensions/ebt_ulog.c
+++ b/extensions/ebt_ulog.c
@@ -180,7 +180,7 @@
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _ulog_init(void)
 {
 	ebt_register_watcher(&ulog_watcher);
 }