Add the sfc node to the rk356x device tree. This enables spi flash
support for this soc.
Signed-off-by: NPeter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20220429115252.2360496-5-pgwipeout@gmail.comSigned-off-by: NHeiko Stuebner <heiko@sntech.de>