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/tmio-common.c b/drivers/mmc/tmio-common.c
index c653973..2c52868 100644
--- a/drivers/mmc/tmio-common.c
+++ b/drivers/mmc/tmio-common.c
@@ -708,14 +708,14 @@
 
 int tmio_sd_bind(struct udevice *dev)
 {
-	struct tmio_sd_plat *plat = dev_get_platdata(dev);
+	struct tmio_sd_plat *plat = dev_get_plat(dev);
 
 	return mmc_bind(dev, &plat->mmc, &plat->cfg);
 }
 
 int tmio_sd_probe(struct udevice *dev, u32 quirks)
 {
-	struct tmio_sd_plat *plat = dev_get_platdata(dev);
+	struct tmio_sd_plat *plat = dev_get_plat(dev);
 	struct tmio_sd_priv *priv = dev_get_priv(dev);
 	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
 	fdt_addr_t base;