s390/qeth: clean up qeth_l3_send_setdelmc()'s declaration

Clarify that the 'ipacmd' parameter is an enum, and thus compatible to
what qeth_ipa_alloc_cmd() expects as input.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/s390/net/qeth_l3_main.c

@@ -314,7 +314,8 @@ static int qeth_l3_setdelip_cb(struct qeth_card *card, struct qeth_reply *reply,
 }
 
 static int qeth_l3_send_setdelmc(struct qeth_card *card,
-			struct qeth_ipaddr *addr, int ipacmd)
+				 struct qeth_ipaddr *addr,
+				 enum qeth_ipa_cmds ipacmd)
 {
 	struct qeth_cmd_buffer *iob;
 	struct qeth_ipa_cmd *cmd;