[ndk-build] Using newer version of ndk-build for the tests
[ndk-build] Using newer version of ndk-build for the tests

Summary: Using the newest version of ndk-build (r15c) for the tests

Reviewed By: jvillard

Differential Revision: D5755792

fbshipit-source-id: 544bd09

facebook/infer,jvillard/infer,facebook/infer,jvillard/infer,jvillard/infer,facebook/infer,jvillard/infer,jvillard/infer,jvillard/infer,facebook/infer,facebook/infer,facebook/infer,facebook/infer,jvillard/infer