Add support for RK3588 combo phy

This is based on prior work from XiaoDong Huang and
Peter Geis fixing this issue specifically for Rockchip 356x.
Co-developed-by: Andrew Powers-Holmes <aholmes@omnom.net>
Signed-off-by: Andrew Powers-Holmes <aholmes@omnom.net>
Signed-off-by: Lucas Tanure <lucas.tanure@collabora.com>
Link: https://lore.kernel.org/r/20230314135555.44162-4-lucas.tanure@collabora.comSigned-off-by: Vinod Koul <vkoul@kernel.org>