dm: treewide: Rename 'platdata' variables to just 'plat'

We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).

Rename some of the latter variables to end with 'plat' for consistency.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/gpio/omap_gpio.c b/drivers/gpio/omap_gpio.c
index 9e82805..7be1beb 100644
--- a/drivers/gpio/omap_gpio.c
+++ b/drivers/gpio/omap_gpio.c
@@ -316,7 +316,7 @@
 	* TODO:
 	* When every board is converted to driver model and DT is
 	* supported, this can be done by auto-alloc feature, but
-	* not using calloc to alloc memory for platdata.
+	* not using calloc to alloc memory for plat.
 	*
 	* For example am33xx_gpio uses platform data rather than device tree.
 	*
@@ -328,7 +328,7 @@
 
 	plat->base = base_addr;
 	plat->port_name = fdt_get_name(gd->fdt_blob, dev_of_offset(dev), NULL);
-	dev->platdata = plat;
+	dev->plat = plat;
 
 	return 0;
 }
@@ -363,7 +363,7 @@
 #if !CONFIG_IS_ENABLED(OF_PLATDATA)
 	.of_match = omap_gpio_ids,
 	.ofdata_to_platdata = of_match_ptr(omap_gpio_ofdata_to_platdata),
-	.platdata_auto	= sizeof(struct omap_gpio_platdata),
+	.plat_auto	= sizeof(struct omap_gpio_platdata),
 #endif
 #else
 	.bind   = omap_gpio_bind,