[OE-core] [PATCH] u-boot: Upgrade to 2018.03 release

[Robert Berger]

Hi,

Update:

This rocko 2.4/u-boot combination still seems to work[1]:

Note that this is before rocko 2.4.1 and before U-Boot 2018.01.

=> version
U-Boot 2017.09 (Nov 04 2017 - 20:32:29 +0000)

arm-poky-linux-gnueabi-gcc (GCC) 7.2.0
GNU ld (GNU Binutils) 2.29.0.20170912

[1] 
https://github.com/RobertBerger/meta-mainline/blob/rocko-training-v4.9.x/u-boot-wic-bsp/yocto-autobuilder/res-custom-rocko-multi-v7-core-image-minimal-uboot-vic.conf

Regards,

Robert