Update calls to IInterface::asBinder()

to use the new static version.

Change-Id: Ia7b10eb38ca55b72278bfd33d3bf647f338b4e6a

Conflicts:
	media/libmedia/IAudioFlinger.cpp
	media/libmedia/IMediaPlayer.cpp
	media/libstagefright/CameraSource.cpp
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index e48af20..c571cf5 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -1187,7 +1187,7 @@
 
             mNotificationClients.add(pid, notificationClient);
 
-            sp<IBinder> binder = client->asBinder();
+            sp<IBinder> binder = IInterface::asBinder(client);
             binder->linkToDeath(notificationClient);
             clientAdded = true;
         }