ARM: multi_v7_defconfig: Enable Maxim 77693 LED and haptic drivers

Enable support for:
1. Haptic motor driver on Trats2 board (Maxim 77693) and Note 4 (Maxim
   77843);
2. LED driver on Trats2 board (Maxim 77693).

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>