net: hamradio: fix compliation error

add missing ")" which caused by previous commit.

Fixes: 61c4fb9c ("net: hamradio: use time_is_after_jiffies() instead of open coding it")
Link: https://lore.kernel.org/all/1646018012-61129-1-git-send-email-wangqing@vivo.com/Signed-off-by: Wang Qing <wangqing@vivo.com>
Link: https://lore.kernel.org/r/1646203277-83159-1-git-send-email-wangqing@vivo.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/hamradio/dmascc.c

@@ -1354,7 +1354,7 @@ static void es_isr(struct scc_priv *priv)
 		/* Switch state */
 		write_scc(priv, R15, 0);
 		if (priv->tx_count &&
-		    time_is_after_jiffies(priv->tx_start + priv->param.txtimeout) {
+		    time_is_after_jiffies(priv->tx_start + priv->param.txtimeout)) {
 			priv->state = TX_PAUSE;
 			start_timer(priv, priv->param.txpause, 0);
 		} else {