dm: treewide: Rename dev_get_platdata() to dev_get_plat()

Rename this to be consistent with the change from 'platdata'.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/net/mscc_eswitch/ocelot_switch.c b/drivers/net/mscc_eswitch/ocelot_switch.c
index 18e11ec..19e725c 100644
--- a/drivers/net/mscc_eswitch/ocelot_switch.c
+++ b/drivers/net/mscc_eswitch/ocelot_switch.c
@@ -420,7 +420,7 @@
 static int ocelot_write_hwaddr(struct udevice *dev)
 {
 	struct ocelot_private *priv = dev_get_priv(dev);
-	struct eth_pdata *pdata = dev_get_platdata(dev);
+	struct eth_pdata *pdata = dev_get_plat(dev);
 
 	mscc_mac_table_add(priv->regs[ANA], ocelot_regs_ana_table,
 			   pdata->enetaddr, PGID_UNICAST);
@@ -433,7 +433,7 @@
 static int ocelot_start(struct udevice *dev)
 {
 	struct ocelot_private *priv = dev_get_priv(dev);
-	struct eth_pdata *pdata = dev_get_platdata(dev);
+	struct eth_pdata *pdata = dev_get_plat(dev);
 	const unsigned char mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff,
 					      0xff };
 	int ret;