Rename three header files to free namespace for api.

Change-Id: Ie9ef65a477373c30b2d5b02248f62e768b6f27ae
diff --git a/libs/rs/rsFont.h b/libs/rs/rsFont.h
index 4ca794d..88c4795 100644
--- a/libs/rs/rsFont.h
+++ b/libs/rs/rsFont.h
@@ -17,7 +17,7 @@
 #ifndef ANDROID_RS_FONT_H
 #define ANDROID_RS_FONT_H
 
-#include "RenderScript.h"
+#include "rs.h"
 #include "rsStream.h"
 #include <utils/String8.h>
 #include <utils/Vector.h>