ar71xx: extend ethernet DMA stuck check to all ar724x (and newer) chips

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48227

target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c

@@ -919,7 +919,7 @@ static int ag71xx_tx_packets(struct ag71xx *ag, bool flush)
 		struct sk_buff *skb = ring->buf[i].skb;
 
 		if (!flush && !ag71xx_desc_empty(desc)) {
-			if (pdata->is_ar7240 &&
+			if (pdata->is_ar724x &&
 			    ag71xx_check_dma_stuck(ag, ring->buf[i].timestamp))
 				schedule_work(&ag->restart_work);
 			break;