ARM: imx_v6_v7_defconfig: Enable CONFIG_THERMAL_STATISTICS

Enable CONFIG_THERMAL_STATISTICS to extend the sysfs interface
for thermal cooling devices and expose some useful statistics.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/configs/imx_v6_v7_defconfig

@@ -225,6 +225,7 @@ CONFIG_POWER_SUPPLY=y
 CONFIG_SENSORS_MC13783_ADC=y
 CONFIG_SENSORS_GPIO_FAN=y
 CONFIG_SENSORS_IIO_HWMON=y
+CONFIG_THERMAL_STATISTICS=y
 CONFIG_THERMAL_WRITABLE_TRIPS=y
 CONFIG_CPU_THERMAL=y
 CONFIG_IMX_THERMAL=y