pmic: Enable power_board_init() support at TRATS

Enable support for power_board_init() method at TRATS board.

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>

board/samsung/trats/trats.c

@@ -68,10 +68,6 @@ int board_init(void)
 	check_hw_revision();
 	printf("HW Revision:\t0x%x\n", board_rev);
 
-#if defined(CONFIG_PMIC)
-	pmic_init(I2C_5);
-#endif
-
 	return 0;
 }
 
@@ -90,6 +86,17 @@ void i2c_init_board(void)
 	s5p_gpio_direction_output(&gpio2->y4, 1, 1);
 }
 
+int power_init_board(void)
+{
+	int ret;
+
+	ret = pmic_init(I2C_5);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
 int dram_init(void)
 {
 	gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE) +