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/power/regulator/sandbox.c b/drivers/power/regulator/sandbox.c
index 9893a6b..c52fe3d 100644
--- a/drivers/power/regulator/sandbox.c
+++ b/drivers/power/regulator/sandbox.c
@@ -140,13 +140,13 @@
 
 static int out_get_mode(struct udevice *dev)
 {
-	struct dm_regulator_uclass_platdata *uc_pdata;
+	struct dm_regulator_uclass_plat *uc_pdata;
 	uint8_t reg_val;
 	uint reg;
 	int ret;
 	int i;
 
-	uc_pdata = dev_get_uclass_platdata(dev);
+	uc_pdata = dev_get_uclass_plat(dev);
 
 	reg = (dev->driver_data - 1) * OUT_REG_COUNT + OUT_REG_OM;
 	ret = pmic_read(dev->parent, reg, &reg_val, 1);
@@ -166,13 +166,13 @@
 
 static int out_set_mode(struct udevice *dev, int mode)
 {
-	struct dm_regulator_uclass_platdata *uc_pdata;
+	struct dm_regulator_uclass_plat *uc_pdata;
 	int reg_val = -1;
 	uint reg;
 	int ret;
 	int i;
 
-	uc_pdata = dev_get_uclass_platdata(dev);
+	uc_pdata = dev_get_uclass_plat(dev);
 
 	if (mode >= uc_pdata->mode_count)
 		return -EINVAL;
@@ -246,9 +246,9 @@
 
 static int sandbox_buck_probe(struct udevice *dev)
 {
-	struct dm_regulator_uclass_platdata *uc_pdata;
+	struct dm_regulator_uclass_plat *uc_pdata;
 
-	uc_pdata = dev_get_uclass_platdata(dev);
+	uc_pdata = dev_get_uclass_plat(dev);
 
 	uc_pdata->type = REGULATOR_TYPE_BUCK;
 	uc_pdata->mode = sandbox_buck_modes;
@@ -322,9 +322,9 @@
 
 static int sandbox_ldo_probe(struct udevice *dev)
 {
-	struct dm_regulator_uclass_platdata *uc_pdata;
+	struct dm_regulator_uclass_plat *uc_pdata;
 
-	uc_pdata = dev_get_uclass_platdata(dev);
+	uc_pdata = dev_get_uclass_plat(dev);
 
 	uc_pdata->type = REGULATOR_TYPE_LDO;
 	uc_pdata->mode = sandbox_ldo_modes;