taprio: boolean values to a bool variable

Fix the following coccicheck warnings:

./net/sched/sch_taprio.c:393:3-16: WARNING: Assignment of 0/1 to bool
variable.

./net/sched/sch_taprio.c:375:2-15: WARNING: Assignment of 0/1 to bool
variable.

./net/sched/sch_taprio.c:244:4-19: WARNING: Assignment of 0/1 to bool
variable.
Reported-by: NAbaci Robot <abaci@linux.alibaba.com>
Signed-off-by: NJiapeng Zhong <abaci-bugfix@linux.alibaba.com>
Link: https://lore.kernel.org/r/1610958662-71166-1-git-send-email-abaci-bugfix@linux.alibaba.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

net/sched/sch_taprio.c

@@ -241,7 +241,7 @@ static struct sched_entry *find_entry_to_transmit(struct sk_buff *skb,
 				/* Here, we are just trying to find out the
 				 * first available interval in the next cycle.
 				 */
-				entry_available = 1;
+				entry_available = true;
 				entry_found = entry;
 				*interval_start = ktime_add_ns(curr_intv_start, cycle);
 				*interval_end = ktime_add_ns(curr_intv_end, cycle);
@@ -372,7 +372,7 @@ static long get_packet_txtime(struct sk_buff *skb, struct Qdisc *sch)
 	packet_transmit_time = length_to_duration(q, len);
 
 	do {
-		sched_changed = 0;
+		sched_changed = false;
 
 		entry = find_entry_to_transmit(skb, sch, sched, admin,
 					       minimum_time,
@@ -390,7 +390,7 @@ static long get_packet_txtime(struct sk_buff *skb, struct Qdisc *sch)
 		if (admin && admin != sched &&
 		    ktime_after(txtime, admin->base_time)) {
 			sched = admin;
-			sched_changed = 1;
+			sched_changed = true;
 			continue;
 		}