iwlwifi: increase tx_queue debugfs buffer size

For tx_queue, need to increase the buffer size allocated for it,
so all the queues information can be displayed

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-debugfs.c

@@ -964,7 +964,7 @@ static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
 	int pos = 0;
 	int cnt;
 	int ret;
-	const size_t bufsz = sizeof(char) * 60 * priv->cfg->num_of_queues;
+	const size_t bufsz = sizeof(char) * 64 * priv->cfg->num_of_queues;
 
 	if (!priv->txq) {
 		IWL_ERR(priv, "txq not ready\n");