Rename fbjni shared library name to the standard soname
Rename fbjni shared library name to the standard soname

Summary:
Before we can upgrade to latest fbjni, we need to make sure our shared libraries are named the same.

Currently when we compile libfbjni it is named as `liblib_fb_fbjni.so`, where as the regular fbjni is expected to be named as `libfbjni.so`

Reviewed By: davidaurelio

Differential Revision: D16250801

fbshipit-source-id: 9a7f0f803d7e525985b40a49edcc0e660e9025f5

facebook/yoga,facebook/css-layout,facebook/css-layout,facebook/css-layout,facebook/yoga,facebook/yoga,facebook/yoga,facebook/css-layout,facebook/css-layout,facebook/yoga,facebook/css-layout,facebook/css-layout,facebook/css-layout,facebook/yoga,facebook/yoga,facebook/yoga,facebook/yoga,facebook/css-layout,facebook/yoga