ARM: multi_v7_defconfig: Enable AC100 RTC driver

Enable the AC100 RTC driver so boards with it can keep track of time.
Signed-off-by: Rask Ingemann Lambertsen <rask@formelder.dk>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/configs/multi_v7_defconfig

@@ -482,6 +482,7 @@ CONFIG_MFD_AS3722=y
 CONFIG_MFD_ATMEL_FLEXCOM=y
 CONFIG_MFD_ATMEL_HLCDC=m
 CONFIG_MFD_BCM590XX=y
+CONFIG_MFD_AC100=y
 CONFIG_MFD_AXP20X=y
 CONFIG_MFD_AXP20X_I2C=m
 CONFIG_MFD_AXP20X_RSB=m
@@ -752,6 +753,7 @@ CONFIG_EDAC_MM_EDAC=y
 CONFIG_EDAC_HIGHBANK_MC=y
 CONFIG_EDAC_HIGHBANK_L2=y
 CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_AC100=y
 CONFIG_RTC_DRV_AS3722=y
 CONFIG_RTC_DRV_DS1307=y
 CONFIG_RTC_DRV_HYM8563=m