[S390] css: update subchannel description after hibernate

Update the subchannel descriptor while resuming from hibernate
in order to obtain current link addresses.
Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/cio/css.c

@@ -1191,6 +1191,7 @@ static int css_pm_restore(struct device *dev)
 	struct subchannel *sch = to_subchannel(dev);
 	struct css_driver *drv;
 
+	css_update_ssd_info(sch);
 	if (!sch->dev.driver)
 		return 0;
 	drv = to_cssdriver(sch->dev.driver);