Build with:
$NDK/ndk-build NDK_PROJECT_PATH=. APPLICATION_BUILD_SCRIPT=Application.mk
output:
libs/arm64-v8a libs/arm64-v8a/openssl libs/arm64-v8a/ssltest
libs/armeabi libs/armeabi/openssl libs/armeabi/ssltest
libs/armeabi-v7a libs/armeabi-v7a/openssl libs/armeabi-v7a/ssltest
libs/x86 libs/x86/openssl libs/x86/ssltest
obj/local/arm64-v8a/libcrypto.a obj/local/arm64-v8a/libssl.a obj/local/armeabi/libcrypto.a obj/local/armeabi/libssl.a obj/local/armeabi-v7a/libcrypto.a obj/local/armeabi-v7a/libssl.a obj/local/x86/libcrypto.a obj/local/x86/libssl.a