cosmetic: atcpit100_timer: Use device api to get platdata

Use dev_get_platdata to get private platdata.

Signed-off-by: rick <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

drivers/timer/atcpit100_timer.c

@@ -73,7 +73,7 @@ struct atcpit_timer_platdata {
 
 static int atcpit_timer_get_count(struct udevice *dev, u64 *count)
 {
-	struct atcpit_timer_platdata *plat = dev->platdata;
+	struct atcpit_timer_platdata *plat = dev_get_platdata(dev);
 	u32 val;
 	val = ~(REG32_TMR(CH_CNT(1))+0xffffffff);
 	*count = timer_conv_64(val);
@@ -82,7 +82,7 @@ static int atcpit_timer_get_count(struct udevice *dev, u64 *count)
 
 static int atcpit_timer_probe(struct udevice *dev)
 {
-	struct atcpit_timer_platdata *plat = dev->platdata;
+	struct atcpit_timer_platdata *plat = dev_get_platdata(dev);
 	REG32_TMR(CH_REL(1)) = 0xffffffff;
 	REG32_TMR(CH_CTL(1)) = APB_CLK|TMR_32;
 	REG32_TMR(CH_EN) |= CH_TMR_EN(1 , 0);