Summary:
After building yoga aar, we found several issues:
1. More dynamic so files. This is bad as lower-end Android devices cannot load that many sos.
2. Size increase.
3. (Minor) The libs are stored in asset folder rather than "libs/".
We apply the following optimizations:
1. Remove dependency on memalign16 (this is brought in by a pure header dependency jni-hack);
2. Enable native relinker to remove unused symbols in the so files.
3. Link yogacore statically to reduce size churn.
Differential Revision: D20808623
fbshipit-source-id: dfbf86525bd90a097348a15a663db2381ade3ba3
