FROMLIST: ARM: dts: rockchip: add syscon-reboot-mode node

Rockchip platform use a SYSCON mapped register store
the reboot mode magic value for bootloader to use when
system reboot. So add syscon-reboot-mode driver DT node
for rk3xxx,rk3288 platform

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>

Conflicts:
arch/arm/boot/dts/rk3288.dtsi
(due to the power-doamin land in kernel4,4 )

Bug: 25923642
Patchset: reboot mode PATCH[3/4], reboot fastboot can work.

(am https://patchwork.kernel.org/patch/8016431/)
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Change-Id: I03b24649b175cc67613277f47d70bf55871e3312
3 files changed