usb: Make pollable int support available outside of ehci-hcd.c

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 78a1af8..c671c72 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1340,7 +1340,7 @@
 }
 
 /* Do not free buffers associated with QHs, they're owned by someone else */
-static int
+int
 destroy_int_queue(struct usb_device *dev, struct int_queue *queue)
 {
 	struct ehci_ctrl *ctrl = dev->controller;