From: Mark Brown <broonie@kernel.org>
Date: Thu, 30 Mar 2017 17:00:12 +0100

This driver uses interfaces from linux/of.h and linux/property.h but
relies on implict inclusion of those headers which means that changes in
other headers could break the build, as happened in -next for arm today.
Add a explicit includes.

Signed-off-by: Mark Brown <broonie@kernel.org>

Applied, thank you.