arndale: config: disable max77686 support

There is no MAX77686 pmic on this board,
so the driver support should be removed.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>

include/configs/arndale.h

@@ -51,8 +51,6 @@
 /* PMIC */
 #define CONFIG_PMIC
 #define CONFIG_POWER_I2C
-#define CONFIG_POWER_MAX77686
-
 
 #define CONFIG_PREBOOT