usb: udc: ci: update speed handling

Remove the gadget driver speed check, and set its max_speed to
be USB_SPEED_HIGH.

Reviewed-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Tested-by: faqiang.zhu <faqiang.zhu@nxp.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c
index cdb8f6f..b64e4bb 100644
--- a/drivers/usb/gadget/ci_udc.c
+++ b/drivers/usb/gadget/ci_udc.c
@@ -145,6 +145,7 @@
 		.name	= "ci_udc",
 		.ops	= &ci_udc_ops,
 		.is_dualspeed = 1,
+		.max_speed = USB_SPEED_HIGH,
 	},
 };
 
@@ -1015,8 +1016,6 @@
 		return -EINVAL;
 	if (!driver->bind || !driver->setup || !driver->disconnect)
 		return -EINVAL;
-	if (driver->speed != USB_SPEED_FULL && driver->speed != USB_SPEED_HIGH)
-		return -EINVAL;
 
 #if CONFIG_IS_ENABLED(DM_USB)
 	ret = usb_setup_ehci_gadget(&controller.ctrl);