Implement remote display service stubs.

Change-Id: I582ed000026bba6d116db8304e15a3c52f8a9a01
diff --git a/media/libmedia/Android.mk b/media/libmedia/Android.mk
index bcce063..76308e8 100644
--- a/media/libmedia/Android.mk
+++ b/media/libmedia/Android.mk
@@ -27,6 +27,8 @@
     IMediaRecorderClient.cpp \
     IMediaPlayer.cpp \
     IMediaRecorder.cpp \
+    IRemoteDisplay.cpp \
+    IRemoteDisplayClient.cpp \
     IStreamSource.cpp \
     Metadata.cpp \
     mediarecorder.cpp \