arm64: defconfig: Enable ChromeOS EC drivers for supported Chromebooks.

Enable following drivers for merged devices:
- ChromeOS EC RTC driver.
- ChromeOS EC userspace interface.
- ChromeOS EC light and proximity sensors.
- ChromeOS EC Barometer Sensor driver.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/configs/defconfig

@@ -363,6 +363,7 @@ CONFIG_MFD_AXP20X_RSB=y
 CONFIG_MFD_CROS_EC=y
 CONFIG_MFD_CROS_EC_I2C=y
 CONFIG_MFD_CROS_EC_SPI=y
+CONFIG_MFD_CROS_EC_CHARDEV=m
 CONFIG_MFD_EXYNOS_LPASS=m
 CONFIG_MFD_HI6421_PMIC=y
 CONFIG_MFD_HI655X_PMIC=y
@@ -516,6 +517,7 @@ CONFIG_RTC_DRV_SUN6I=y
 CONFIG_RTC_DRV_ARMADA38X=y
 CONFIG_RTC_DRV_TEGRA=y
 CONFIG_RTC_DRV_XGENE=y
+CONFIG_RTC_DRV_CROS_EC=y
 CONFIG_DMADEVICES=y
 CONFIG_DMA_BCM2835=m
 CONFIG_K3_DMA=y
@@ -576,6 +578,10 @@ CONFIG_TEGRA_MC=y
 CONFIG_IIO=y
 CONFIG_EXYNOS_ADC=y
 CONFIG_ROCKCHIP_SARADC=m
+CONFIG_IIO_CROS_EC_SENSORS_CORE=m
+CONFIG_IIO_CROS_EC_SENSORS=m
+CONFIG_IIO_CROS_EC_LIGHT_PROX=m
+CONFIG_IIO_CROS_EC_BARO=m
 CONFIG_PWM=y
 CONFIG_PWM_BCM2835=m
 CONFIG_PWM_CROS_EC=m