uboot-imx

Merge tag 'for-master-20190103' of git://git.denx.de/u-boot-rockchip

Last-minute fixes for 2019.1:
- clamp DRAM size to below 32bit for 32bit targets to support 4GB
- fix copyright notice on some Rockchip-contributed files
- adjust vdd_log for the RK3399-Q7 to improve stability in some workloads