dm: treewide: Rename ..._platdata variables to just ..._plat

Try to maintain some consistency between these variables by using _plat as
a suffix for them.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/gpio/da8xx_gpio.c b/drivers/gpio/da8xx_gpio.c
index b47d65d..9a52a5e 100644
--- a/drivers/gpio/da8xx_gpio.c
+++ b/drivers/gpio/da8xx_gpio.c
@@ -522,7 +522,7 @@
 static int davinci_gpio_probe(struct udevice *dev)
 {
 	struct davinci_gpio_bank *bank = dev_get_priv(dev);
-	struct davinci_gpio_platdata *plat = dev_get_plat(dev);
+	struct davinci_gpio_plat *plat = dev_get_plat(dev);
 	struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
 	const void *fdt = gd->fdt_blob;
 	int node = dev_of_offset(dev);
@@ -542,7 +542,7 @@
 
 static int davinci_gpio_of_to_plat(struct udevice *dev)
 {
-	struct davinci_gpio_platdata *plat = dev_get_plat(dev);
+	struct davinci_gpio_plat *plat = dev_get_plat(dev);
 	fdt_addr_t addr;
 
 	addr = dev_read_addr(dev);
@@ -560,7 +560,7 @@
 	.of_to_plat = of_match_ptr(davinci_gpio_of_to_plat),
 	.of_match = davinci_gpio_ids,
 	.bind   = dm_scan_fdt_dev,
-	.plat_auto	= sizeof(struct davinci_gpio_platdata),
+	.plat_auto	= sizeof(struct davinci_gpio_plat),
 	.probe	= davinci_gpio_probe,
 	.priv_auto	= sizeof(struct davinci_gpio_bank),
 };