rockchip: use OF_UPSTREAM for rk3036

The device tree for rk3036 combined is now
available in the /dts/upstream directory.
Use imply OF_UPSTREAM to migrate all rk3036 boards.

Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
9 files changed