Move input library code to frameworks/native.

No longer compile libandroidfw as a static library on the device
since it already exists as a shared library.  Keeping the static
library would force us to provide a static library version of
libinput for the device as well which doesn't make sense.

Change-Id: I3517881b87b47dcc209d80dbd0ac6b5cf29a766f
diff --git a/native/android/input.cpp b/native/android/input.cpp
index f6ea576..e9d08b4 100644
--- a/native/android/input.cpp
+++ b/native/android/input.cpp
@@ -18,8 +18,8 @@
 #include <utils/Log.h>
 
 #include <android/input.h>
-#include <androidfw/Input.h>
-#include <androidfw/InputTransport.h>
+#include <input/Input.h>
+#include <input/InputTransport.h>
 #include <utils/Looper.h>
 #include <utils/RefBase.h>
 #include <utils/Vector.h>