Add touch.wake IDC property to control wakeup.

Normally we do not wake the device when the internal touch screen is
touched.  This behavior can now be configured by setting a property
in the input device configuration file.  Add the following line to
the IDC file to enable an initial touch to wake the device from sleep.

  touch.wake = 1

Change-Id: Ifd6d4f51afacd30d85f475725a66e6fcccde9cbb
diff --git a/libs/input/InputReader.h b/libs/input/InputReader.h
index a8bb636..eb5746b 100644
--- a/libs/input/InputReader.h
+++ b/libs/input/InputReader.h
@@ -1214,6 +1214,8 @@
             GESTURE_MODE_SPOTS,
         };
         GestureMode gestureMode;
+
+        bool wake;
     } mParameters;
 
     // Immutable calibration parameters in parsed form.