This commit is based on Sascha's ARM commits:

    commit a9e7e68
    Author: Sascha Hauer <s.hauer@pengutronix.de>
    Date:   Fri Dec 11 08:02:02 2015 +0100

        ARM: dts: Add *.dtb.lzo to clean files

    commit f5b552f
    Author: Sascha Hauer <s.hauer@pengutronix.de>
    Date:   Fri May 9 09:11:49 2014 +0200

        ARM: dts: Add generated files to clean rule

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