arm64: rockchip: rock960: sync dts files from Linux 5.2-rc6

Sync the dts files for the Rock960 boards from Linux to get the
latest changes and fixes for the devices.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
3 files changed