arm64: rockchip: Add RK3399 TypeC phy driver

This is a driver for the USB3 PHY present in the RK3399.
While the phy support DP (Display Port) the driver doesn't has we have
no driver to test this with for now.
All the lane and pll configuration is just magic values from rockchip.
While the manual have some info on those registers it's really hard to
understand how to calculate those values (if there is a way).

MFC after: 1 month