ARM: imx_v6_v7_defconfig: enable power driver of RN5T618 PMIC family

There is a driver now for the power supply and fuel gauge functionality
of that chip family, so enable them, since they are used by various
i.MX6 boards, especially ebook-readers.
Signed-off-by: NAndreas Kemnade <andreas@kemnade.info>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/configs/imx_v6_v7_defconfig

@@ -222,6 +222,7 @@ CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_SYSCON=y
 CONFIG_POWER_RESET_SYSCON_POWEROFF=y
 CONFIG_POWER_SUPPLY=y
+CONFIG_RN5T618_POWER=m
 CONFIG_SENSORS_MC13783_ADC=y
 CONFIG_SENSORS_GPIO_FAN=y
 CONFIG_SENSORS_IIO_HWMON=y