am f68d6af8: ndk: Add a test to check that prebuilt libraries work as expected.

Merge commit 'f68d6af83f8f99714c139d867e8328f558480f28' into gingerbread-plus-aosp

* commit 'f68d6af83f8f99714c139d867e8328f558480f28':
  ndk: Add a test to check that prebuilt libraries work as expected.