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/xilinx_emaclite.c b/drivers/net/xilinx_emaclite.c
index acbf0fa..4a0e3f6 100644
--- a/drivers/net/xilinx_emaclite.c
+++ b/drivers/net/xilinx_emaclite.c
@@ -322,7 +322,7 @@
 static int emaclite_start(struct udevice *dev)
 {
 	struct xemaclite *emaclite = dev_get_priv(dev);
-	struct eth_pdata *pdata = dev_get_platdata(dev);
+	struct eth_pdata *pdata = dev_get_plat(dev);
 	struct emaclite_regs *regs = emaclite->regs;
 
 	debug("EmacLite Initialization Started\n");
@@ -595,7 +595,7 @@
 
 static int emaclite_ofdata_to_platdata(struct udevice *dev)
 {
-	struct eth_pdata *pdata = dev_get_platdata(dev);
+	struct eth_pdata *pdata = dev_get_plat(dev);
 	struct xemaclite *emaclite = dev_get_priv(dev);
 	int offset = 0;