tree 6547dcd0bd2e2850e21dacc51f738f26155e145c
parent 8867299f0518f9cdd658d3eaf6e7e744618ad217
author Caesar Wang <wxt@rock-chips.com> 1464174319 +0800
committer Caesar Wang <wxt@rock-chips.com> 1464313196 +0800

rockchip: support system off function for rk3399

if define power off gpio, BL31 will do system power off through
gpio control.