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/bcmgenet.c b/drivers/net/bcmgenet.c
index 9fcb28a..1627e93 100644
--- a/drivers/net/bcmgenet.c
+++ b/drivers/net/bcmgenet.c
@@ -236,7 +236,7 @@
 static int bcmgenet_gmac_write_hwaddr(struct udevice *dev)
 {
 	struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
-	struct eth_pdata *pdata = dev_get_platdata(dev);
+	struct eth_pdata *pdata = dev_get_plat(dev);
 	uchar *addr = pdata->enetaddr;
 	u32 reg;
 
@@ -619,7 +619,7 @@
 
 static int bcmgenet_eth_probe(struct udevice *dev)
 {
-	struct eth_pdata *pdata = dev_get_platdata(dev);
+	struct eth_pdata *pdata = dev_get_plat(dev);
 	struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
 	ofnode mdio_node;
 	const char *name;
@@ -687,7 +687,7 @@
 
 static int bcmgenet_eth_ofdata_to_platdata(struct udevice *dev)
 {
-	struct eth_pdata *pdata = dev_get_platdata(dev);
+	struct eth_pdata *pdata = dev_get_plat(dev);
 	struct bcmgenet_eth_priv *priv = dev_get_priv(dev);
 	struct ofnode_phandle_args phy_node;
 	const char *phy_mode;