update u-boot to latest git revision - arm-sdk - os build toolkit for various embedded devices

commit 9d23eddb4a7574ae5823b3e4e11601e0e1194083
parent 9096c0b5b4160e2c4642485614203f80b3e1d1ef
Author: parazyd <parazyd@dyne.org>
Date:   Fri, 27 Oct 2017 17:59:53 +0200

update u-boot to latest git revision

	arm-sdk os build toolkit for various embedded devices
	git clone https://git.parazyd.org/arm-sdk
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