ARM: imx_v6_v7_defconfig: add RN5T618 PMIC family support

This allows to successfully boot Colibri iMX7 which is using
the Ricoh RN5T567 PMIC.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/configs/imx_v6_v7_defconfig

@@ -214,11 +214,13 @@ CONFIG_CPU_THERMAL=y
 CONFIG_IMX_THERMAL=y
 CONFIG_WATCHDOG=y
 CONFIG_DA9062_WATCHDOG=y
+CONFIG_RN5T618_WATCHDOG=y
 CONFIG_IMX2_WDT=y
 CONFIG_MFD_DA9052_I2C=y
 CONFIG_MFD_DA9062=y
 CONFIG_MFD_MC13XXX_SPI=y
 CONFIG_MFD_MC13XXX_I2C=y
+CONFIG_MFD_RN5T618=y
 CONFIG_MFD_STMPE=y
 CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
@@ -229,6 +231,7 @@ CONFIG_REGULATOR_GPIO=y
 CONFIG_REGULATOR_MC13783=y
 CONFIG_REGULATOR_MC13892=y
 CONFIG_REGULATOR_PFUZE100=y
+CONFIG_REGULATOR_RN5T618=y
 CONFIG_RC_CORE=y
 CONFIG_RC_DEVICES=y
 CONFIG_IR_GPIO_CIR=y