sch_netem: replace magic numbers with enumerate in get_loss_clg

Replace two magic numbers which intialize clgstate::state.
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/sched/sch_netem.c

@@ -752,7 +752,7 @@ static int get_loss_clg(struct netem_sched_data *q, const struct nlattr *attr)
 
 			q->loss_model = CLG_4_STATES;
 
-			q->clg.state = 1;
+			q->clg.state = TX_IN_GAP_PERIOD;
 			q->clg.a1 = gi->p13;
 			q->clg.a2 = gi->p31;
 			q->clg.a3 = gi->p32;
@@ -770,7 +770,7 @@ static int get_loss_clg(struct netem_sched_data *q, const struct nlattr *attr)
 			}
 
 			q->loss_model = CLG_GILB_ELL;
-			q->clg.state = 1;
+			q->clg.state = GOOD_STATE;
 			q->clg.a1 = ge->p;
 			q->clg.a2 = ge->r;
 			q->clg.a3 = ge->h;