usb-storage: Modify and export adjust_quirks so that it can be used by uas

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
index 75f70f0..307e339 100644
--- a/drivers/usb/storage/usb.h
+++ b/drivers/usb/storage/usb.h
@@ -201,4 +201,7 @@
 extern int usb_stor_probe2(struct us_data *us);
 extern void usb_stor_disconnect(struct usb_interface *intf);
 
+extern void usb_stor_adjust_quirks(struct usb_device *dev,
+		unsigned long *fflags);
+
 #endif