ARM: shmobile: bockw defconfig: add RTC RX8581 support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/arch/arm/configs/bockw_defconfig b/arch/arm/configs/bockw_defconfig
index d662608..cb7638d 100644
--- a/arch/arm/configs/bockw_defconfig
+++ b/arch/arm/configs/bockw_defconfig
@@ -86,6 +86,8 @@
 CONFIG_USB_RCAR_PHY=y
 CONFIG_MMC=y
 CONFIG_MMC_SDHI=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_RX8581=y
 CONFIG_UIO=y
 CONFIG_UIO_PDRV_GENIRQ=y
 # CONFIG_IOMMU_SUPPORT is not set