usb: host: ohci-platform: increase max clock number to 4

Rockchip RK3588 OHCI requires 4 clocks to be enabled.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230522162937.53190-4-sebastian.reichel@collabora.com


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