ARM: multi_v7_defconfig: Enable BQ32000 RTC driver

The iWave RZ/G1M Q7 SOM supports RTC (TI BQ32000).
To increase hardware support enable the driver in the
multi_v7_defconfig multiplatform configuration.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/configs/multi_v7_defconfig

@@ -767,6 +767,7 @@ CONFIG_RTC_DRV_MAX8997=m
 CONFIG_RTC_DRV_MAX77686=y
 CONFIG_RTC_DRV_RK808=m
 CONFIG_RTC_DRV_RS5C372=m
+CONFIG_RTC_DRV_BQ32K=m
 CONFIG_RTC_DRV_PALMAS=y
 CONFIG_RTC_DRV_ST_LPC=y
 CONFIG_RTC_DRV_TWL4030=y