TT#37257 Fix endless cycle

Fix endless cycle in case of multiple interfaces and non interctive
mode.
Add exit if interface was configured.

Change-Id: I8ddb00f9b4dbcd997bb6fc95e100d7db6f8870b2

templates/scripts/includes/netcardconfig

@@ -684,6 +684,7 @@ while (true); do
       read -r DV <"$TMP" ; rm -f "$TMP"
     else
       DV="${NET_DEV}"
+      [[ -z "${IFACEDONE}" ]] || bailout
     fi
     [ "$DV" = "$EXITKEY" ] && bailout
   else