phy: rockchip: naneng-combphy: Introduce PHY-IDs to fix RK3588 muxing

phy: rockchip: naneng-combphy: Introduce PHY-IDs to fix RK3588 muxing

Fix multiplex configuration for PCIe1L0 and PCIe1L1 in PCIESEL_CON for
RK3588 to correctly select between Combo PHYs and PCIe3 PHY.
Currently, the code incorrectly muxes both ports to Combo PHYs,
interfering with PCIe3 PHY settings.
Introduce PHY identifiers to identify the correct Combo PHY and set
the necessary bits accordingly.

This fix is adapted from the upstream Linux commit by Sebastian Reichel:
d16d4002fea6 ("phy: rockchip: naneng-combphy: Fix mux on rk3588")

Fixes: b37260bca1aa ("phy: rockchip: naneng-combphy: Use signal from comb PHY on RK3588")
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Sebastian Kropatsch <seb-dev@mail.de>