board: samsung: goni: fix the pmic's name for getting

For Getting from uclass, use the "max8998-pmic" as name.
It also needs to change the dt-node's name as "max8998-pmic".
Otherwise, it doesn't find the pmic device.
Because it's only searching for 'max8998_pmic'.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

arch/arm/dts/s5pc1xx-goni.dts

@@ -42,7 +42,7 @@
 		#size-cells = <0>;
 		status = "okay";
 
-		pmic@66 {
+		max8998-pmic@66 {
 			compatible = "maxim,max8998";
 			reg = <0x66 0 0>;
 

board/samsung/goni/goni.c

@@ -138,7 +138,7 @@ static int s5pc1xx_phy_control(int on)
 	static int status;
 	int reg, ret;
 
-	ret = pmic_get("max8998_pmic", &dev);
+	ret = pmic_get("max8998-pmic", &dev);
 	if (ret)
 		return ret;