Input: input-polldev, matrix-keypad - include in kernel doc

Make sure that polled input device and matrix keypad APIs are included
with the rest of input API when generating kernel documentation. Also
description of absres was missing as well.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl
index 94a20fe..e994d1d 100644
--- a/Documentation/DocBook/device-drivers.tmpl
+++ b/Documentation/DocBook/device-drivers.tmpl
@@ -293,10 +293,19 @@
 
   <chapter id="input_subsystem">
      <title>Input Subsystem</title>
+     <sect1><title>Input core</title>
 !Iinclude/linux/input.h
 !Edrivers/input/input.c
 !Edrivers/input/ff-core.c
 !Edrivers/input/ff-memless.c
+     </sect1>
+     <sect1><title>Polled input devices</title>
+!Iinclude/linux/input-polldev.h
+!Edrivers/input/input-polldev.c
+     </sect1>
+     <sect1><title>Matrix keyboars/keypads</title>
+!Iinclude/linux/input/matrix_keypad.h
+     </sect1>
   </chapter>
 
   <chapter id="spi">