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/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c
index 628081a..65ebd7c 100644
--- a/drivers/usb/host/ehci-mx6.c
+++ b/drivers/usb/host/ehci-mx6.c
@@ -472,7 +472,7 @@
 
 static int ehci_usb_phy_mode(struct udevice *dev)
 {
-	struct usb_platdata *plat = dev_get_plat(dev);
+	struct usb_plat *plat = dev_get_plat(dev);
 	void *__iomem addr = dev_read_addr_ptr(dev);
 	void *__iomem phy_ctrl, *__iomem phy_status;
 	const void *blob = gd->fdt_blob;
@@ -520,7 +520,7 @@
 
 static int ehci_usb_of_to_plat(struct udevice *dev)
 {
-	struct usb_platdata *plat = dev_get_plat(dev);
+	struct usb_plat *plat = dev_get_plat(dev);
 	enum usb_dr_mode dr_mode;
 
 	dr_mode = usb_get_dr_mode(dev->node);
@@ -579,7 +579,7 @@
 
 static int ehci_usb_probe(struct udevice *dev)
 {
-	struct usb_platdata *plat = dev_get_plat(dev);
+	struct usb_plat *plat = dev_get_plat(dev);
 	struct usb_ehci *ehci = dev_read_addr_ptr(dev);
 	struct ehci_mx6_priv_data *priv = dev_get_priv(dev);
 	enum usb_init_type type = plat->init_type;
@@ -650,7 +650,7 @@
 	.probe	= ehci_usb_probe,
 	.remove = ehci_deregister,
 	.ops	= &ehci_usb_ops,
-	.plat_auto	= sizeof(struct usb_platdata),
+	.plat_auto	= sizeof(struct usb_plat),
 	.priv_auto	= sizeof(struct ehci_mx6_priv_data),
 	.flags	= DM_FLAG_ALLOC_PRIV_DMA,
 };