ARM: multi_v7_defconfig: Enable support for ST's LPC RTC

Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMaxime Coquelin <maxime.coquelin@st.com>

arch/arm/configs/multi_v7_defconfig

@@ -500,6 +500,7 @@ CONFIG_RTC_DRV_MAX8907=y
 CONFIG_RTC_DRV_MAX77686=y
 CONFIG_RTC_DRV_RS5C372=m
 CONFIG_RTC_DRV_PALMAS=y
+CONFIG_RTC_DRV_ST_LPC=y
 CONFIG_RTC_DRV_TWL4030=y
 CONFIG_RTC_DRV_TPS6586X=y
 CONFIG_RTC_DRV_TPS65910=y