phy: rockchip: snps-pcie3: Add support for RK3588

Add support for the RK3588 variant to the driver.

Code imported almost 1:1 from mainline linux driver.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
1 file changed