dm: treewide: Rename dev_get_platdata() to dev_get_plat()

Rename this to be consistent with the change from 'platdata'.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/ram/imxrt_sdram.c b/drivers/ram/imxrt_sdram.c
index 03d0d88..6a5d96f 100644
--- a/drivers/ram/imxrt_sdram.c
+++ b/drivers/ram/imxrt_sdram.c
@@ -224,7 +224,7 @@
 
 int imxrt_sdram_init(struct udevice *dev)
 {
-	struct imxrt_sdram_params *params = dev_get_platdata(dev);
+	struct imxrt_sdram_params *params = dev_get_plat(dev);
 	struct imxrt_sdram_mux *mux = params->sdram_mux;
 	struct imxrt_sdram_control *ctrl = params->sdram_control;
 	struct imxrt_sdram_timing *time = params->sdram_timing;
@@ -304,7 +304,7 @@
 
 static int imxrt_semc_ofdata_to_platdata(struct udevice *dev)
 {
-	struct imxrt_sdram_params *params = dev_get_platdata(dev);
+	struct imxrt_sdram_params *params = dev_get_plat(dev);
 	ofnode bank_node;
 	u8 bank = 0;
 
@@ -389,7 +389,7 @@
 
 static int imxrt_semc_probe(struct udevice *dev)
 {
-	struct imxrt_sdram_params *params = dev_get_platdata(dev);
+	struct imxrt_sdram_params *params = dev_get_plat(dev);
 	int ret;
 	fdt_addr_t addr;