Update NDK headers and samples to sync up with looper API changes.

Change-Id: I7082603bf280888be90dc4df687521aaae9b1d02

ndk/platforms/android-9/samples/native-plasma/jni/plasma.c

@@ -476,7 +476,7 @@ void android_main(struct android_app* state) {
         // If not animating, we will block forever waiting for events.
         // If animating, we loop until all events are read, then continue
         // to draw the next frame of animation.
-        while ((ident=ALooper_pollAll(engine.animating ? 0 : -1, &events,
+        while ((ident=ALooper_pollAll(engine.animating ? 0 : -1, NULL, &events,
                 (void**)&source)) >= 0) {
 
             // Process this event.