U-Boot updates from ELC2017

As pointed out by the Phoronix article, Embedded Linux Conference had a few talks on U-Boot:

http://www.phoronix.com/scan.php?page=news_item&px=U-Boot-2017-State

Click to access ELC2017%20-%20State%20of%20the%20U-Boot.pdf

Click to access Enabling%20_New_Hardware_in_U-Boot.pdf