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/mmc/snps_dw_mmc.c b/drivers/mmc/snps_dw_mmc.c
index 0533bc2..ad274f5 100644
--- a/drivers/mmc/snps_dw_mmc.c
+++ b/drivers/mmc/snps_dw_mmc.c
@@ -132,7 +132,7 @@
 static int snps_dwmmc_probe(struct udevice *dev)
 {
 #ifdef CONFIG_BLK
-	struct snps_dwmci_plat *plat = dev_get_platdata(dev);
+	struct snps_dwmci_plat *plat = dev_get_plat(dev);
 #endif
 	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
 	struct snps_dwmci_priv_data *priv = dev_get_priv(dev);
@@ -171,7 +171,7 @@
 static int snps_dwmmc_bind(struct udevice *dev)
 {
 #ifdef CONFIG_BLK
-	struct snps_dwmci_plat *plat = dev_get_platdata(dev);
+	struct snps_dwmci_plat *plat = dev_get_plat(dev);
 	int ret;
 
 	ret = dwmci_bind(dev, &plat->mmc, &plat->cfg);