ARM: imx_v6_v7_defconfig: enable RTC_DRV_MXC_V2

Enable SRTC driver for i.MX53 in default config
Signed-off-by: Patrick Bruenn <p.bruenn@beckhoff.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/configs/imx_v6_v7_defconfig

@@ -355,6 +355,7 @@ CONFIG_RTC_DRV_PCF8563=y
 CONFIG_RTC_DRV_M41T80=y
 CONFIG_RTC_DRV_MC13XXX=y
 CONFIG_RTC_DRV_MXC=y
+CONFIG_RTC_DRV_MXC_V2=y
 CONFIG_RTC_DRV_SNVS=y
 CONFIG_DMADEVICES=y
 CONFIG_FSL_EDMA=y