qeth: specify correct function level for OSN devices

OSN devices use the same function level as OSD devices. This patch
adds OSN-devices to the initialization function for func_level.
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/s390/net/qeth_core_main.c

@@ -1390,6 +1390,7 @@ static void qeth_init_func_level(struct qeth_card *card)
 				QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
 		break;
 	case QETH_CARD_TYPE_OSD:
+	case QETH_CARD_TYPE_OSN:
 		card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD;
 		break;
 	default: