arm64: dts: rockchip: enable sfc controller on Quartz64 Model A

Add the sfc controller binding for the Quartz64 Model A. This is not
populated by default, so leave it disabled.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20220511150117.113070-7-pgwipeout@gmail.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>