Merge "Declare the headers of the ndk_library" am: 2167e10a98

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2212876

Change-Id: I7763bada7a678028bc94ed7c565b9410df978178
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>