In preparation for the rk3566 inclusion, split apart the rk3568 specific
nodes into a separate device tree.
This allows us to create the rk3566 device tree without deleting nodes.
Signed-off-by: NPeter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20210710151034.32857-3-pgwipeout@gmail.comSigned-off-by: NHeiko Stuebner <heiko@sntech.de>