arm:trats:pmic: Enable MUIC (MAX8997) at Samsung's TRATS board

MUIC IC built into the MAX8997 device is enabled at TRATS.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
index ebbc7ab..2359a99 100644
--- a/board/samsung/trats/trats.c
+++ b/board/samsung/trats/trats.c
@@ -38,6 +38,7 @@
 #include <usb/s3c_udc.h>
 #include <power/max8997_pmic.h>
 #include <libtizen.h>
+#include <power/max8997_muic.h>
 
 #include "setup.h"
 
@@ -241,7 +242,7 @@
 
 	ret = pmic_init(I2C_5);
 	ret |= pmic_init_max8997();
-
+	ret |= power_muic_init(I2C_5);
 	if (ret)
 		return ret;