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/sysreset/sysreset_x86.c b/drivers/sysreset/sysreset_x86.c
index e51ce1b..8f99703 100644
--- a/drivers/sysreset/sysreset_x86.c
+++ b/drivers/sysreset/sysreset_x86.c
@@ -14,7 +14,7 @@
 #include <asm/io.h>
 #include <asm/processor.h>
 
-struct x86_sysreset_platdata {
+struct x86_sysreset_plat {
 	struct udevice *pch;
 };
 
@@ -30,7 +30,7 @@
  */
 int pch_sysreset_power_off(struct udevice *dev)
 {
-	struct x86_sysreset_platdata *plat = dev_get_plat(dev);
+	struct x86_sysreset_plat *plat = dev_get_plat(dev);
 	struct pch_pmbase_info pm;
 	u32 reg32;
 	int ret;
@@ -130,7 +130,7 @@
 
 static int x86_sysreset_probe(struct udevice *dev)
 {
-	struct x86_sysreset_platdata *plat = dev_get_plat(dev);
+	struct x86_sysreset_plat *plat = dev_get_plat(dev);
 
 	/* Locate the PCH if there is one. It isn't essential */
 	uclass_first_device(UCLASS_PCH, &plat->pch);
@@ -154,5 +154,5 @@
 	.of_match = x86_sysreset_ids,
 	.ops = &x86_sysreset_ops,
 	.probe = x86_sysreset_probe,
-	.plat_auto	= sizeof(struct x86_sysreset_platdata),
+	.plat_auto	= sizeof(struct x86_sysreset_plat),
 };