phy: rockchip: naneng-combphy: Add RK3528 support

phy: rockchip: naneng-combphy: Add RK3528 support

Rockchip RK3528 integrates one naneng-combphy that is able to operate in
PCIe and USB3 mode. The control logic is similar to previous variants of
naneng-combphy but the register layout is apparently different from the
RK3568 one.

Signed-off-by: Yao Zi <ziyao@disroot.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250728102947.38984-7-ziyao@disroot.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>