Doxygen documentation is removed in the commit

  commit 98360be0
  Author: Sascha Hauer <s.hauer@pengutronix.de>
  Date:   Tue Jun 17 10:27:03 2014 +0200

      Documentation: remove doxygen documentation

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>