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>
diff --git a/board/samsung/goni/goni.c b/board/samsung/goni/goni.c
index 80fd0d4..9c48d71 100644
--- a/board/samsung/goni/goni.c
+++ b/board/samsung/goni/goni.c
@@ -138,7 +138,7 @@
 	static int status;
 	int reg, ret;
 
-	ret = pmic_get("max8998_pmic", &dev);
+	ret = pmic_get("max8998-pmic", &dev);
 	if (ret)
 		return ret;