usb: dwc3: add optional PHY interface clocks

On Rockchip RK3588 one of the DWC3 cores is integrated weirdly and
requires two extra clocks to be enabled. Without these extra clocks
hot-plugging USB devices is broken.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20231020150022.48725-3-sebastian.reichel@collabora.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>