dpaa_eth: use true and false for boolean values

Assign true or false to boolean variables instead of an integer value.

This issue was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c

@@ -344,7 +344,7 @@ static void dpaa_get_ethtool_stats(struct net_device *net_dev,
 
 	/* gather congestion related counters */
 	cg_num    = 0;
-	cg_status = 0;
+	cg_status = false;
 	cg_time   = jiffies_to_msecs(priv->cgr_data.congested_jiffies);
 	if (qman_query_cgr_congested(&priv->cgr_data.cgr, &cg_status) == 0) {
 		cg_num    = priv->cgr_data.cgr_congested_count;