phy: phy-rockchip-inno-usb2: Add RK3128 support

Add registers to support the 2-port usb2 phy found in RK312x SoC familiy.

Signed-off-by: Alex Bee <knaerzche@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20231119121340.109025-3-knaerzche@gmail.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>