CRC32 digest can be used to check CRC32 hashes in FIT images etc.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Yegor Yefremov authored on 25 May 2016 Sascha Hauer committed on 25 May 2016