ARM: exynos_defconfig: Enable CONFIG_SENSORS_PWM_FAN for Odroid-XU3

Enable CONFIG_SENSORS_PWM_FAN on exynos_defconfig to control fan
power on Odroid-XU3.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>

arch/arm/configs/exynos_defconfig

@@ -94,6 +94,7 @@ CONFIG_CHARGER_MAX14577=y
 CONFIG_CHARGER_MAX77693=y
 CONFIG_CHARGER_TPS65090=y
 CONFIG_SENSORS_LM90=y
+CONFIG_SENSORS_PWM_FAN=y
 CONFIG_THERMAL=y
 CONFIG_CPU_THERMAL=y
 CONFIG_THERMAL_EMULATION=y