scsi: target: iscsi: Fix np_ip_proto and np_sock_type in iscsit_setup_np

In the switch, np_ip_proto and np_sock_type set different values according
to np_network_transport, and then uniformly assign values, so the previous
values are overwritten.
Signed-off-by: tangwenji <tang.wenji@zte.com.cn>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/target/iscsi/iscsi_target_login.c

@@ -883,9 +883,6 @@ int iscsit_setup_np(
 		return -EINVAL;
 	}
 
-	np->np_ip_proto = IPPROTO_TCP;
-	np->np_sock_type = SOCK_STREAM;
-
 	ret = sock_create(sockaddr->ss_family, np->np_sock_type,
 			np->np_ip_proto, &sock);
 	if (ret < 0) {