Merge "Declare the headers of the ndk_library" am: 7ef86f3456

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2212875

Change-Id: I738cb409fc44aa760c44057471c387a368c28595
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>