ARM: multi_v7_defconfig: Enable fan, sensors and audio for Odroid XU3

ARM: multi_v7_defconfig: Enable fan, sensors and audio for Odroid XU3

For Odroid XU3-family enable the:
 - PWM fan (to control the CPU fan using thermal subsystem),
 - TI INA231 sensors (provide power measurements of big.LITTLE cores,
   DRAM and GPU),
 - Samsung sound (for Odroid XU3 and Snow as well).

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