fix comment/printk typos concerning "already"

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/isdn/mISDN/tei.c b/drivers/isdn/mISDN/tei.c
index 34e898f..1b85d9d 100644
--- a/drivers/isdn/mISDN/tei.c
+++ b/drivers/isdn/mISDN/tei.c
@@ -457,7 +457,7 @@
 
 	if (tm->l2->tei != GROUP_TEI) {
 		tm->tei_m.printdebug(&tm->tei_m,
-			"assign request for allready assigned tei %d",
+			"assign request for already assigned tei %d",
 			tm->l2->tei);
 		return;
 	}