cw1200: use time_is_after_jiffies() instead of open coding it

Use the helper function time_is_{before,after}_jiffies() to improve
code readability.
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/1646018060-61275-1-git-send-email-wangqing@vivo.com

drivers/net/wireless/st/cw1200/queue.c

@@ -8,6 +8,7 @@
 
 #include <net/mac80211.h>
 #include <linux/sched.h>
+#include <linux/jiffies.h>
 #include "queue.h"
 #include "cw1200.h"
 #include "debug.h"
@@ -94,7 +95,7 @@ static void __cw1200_queue_gc(struct cw1200_queue *queue,
 	bool wakeup_stats = false;
 
 	list_for_each_entry_safe(item, tmp, &queue->queue, head) {
-		if (jiffies - item->queue_timestamp < queue->ttl)
+		if (time_is_after_jiffies(item->queue_timestamp + queue->ttl))
 			break;
 		--queue->num_queued;
 		--queue->link_map_cache[item->txpriv.link_id];