powerpc/defconfig: update RTC support

- remove CONFIG_RTC_DRV_CMOS in corenet32_smp_defconfig(it's unused),
  reserve CONFIG_RTC_DRV_CMOS in mpc85xx_defconfig(needed on some CDS boards)

- enable CONFIG_RTC_DRV_DS1307, CONFIG_RTC_DRV_DS1374,
  CONFIG_RTC_DRV_DS3232 in mpc85xx_defconfig, mpc85xx_smp_defconfig

- enable RTC support in  corenet64_smp_defconfig

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
diff --git a/arch/powerpc/configs/corenet32_smp_defconfig b/arch/powerpc/configs/corenet32_smp_defconfig
index c19ff05..7d0c837 100644
--- a/arch/powerpc/configs/corenet32_smp_defconfig
+++ b/arch/powerpc/configs/corenet32_smp_defconfig
@@ -139,8 +139,9 @@
 CONFIG_EDAC_MM_EDAC=y
 CONFIG_EDAC_MPC85XX=y
 CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_DS1307=y
+CONFIG_RTC_DRV_DS1374=y
 CONFIG_RTC_DRV_DS3232=y
-CONFIG_RTC_DRV_CMOS=y
 CONFIG_UIO=y
 CONFIG_STAGING=y
 CONFIG_VIRT_DRIVERS=y
diff --git a/arch/powerpc/configs/corenet64_smp_defconfig b/arch/powerpc/configs/corenet64_smp_defconfig
index 5c7fa19..6ae07e1 100644
--- a/arch/powerpc/configs/corenet64_smp_defconfig
+++ b/arch/powerpc/configs/corenet64_smp_defconfig
@@ -123,6 +123,10 @@
 CONFIG_USB_STORAGE=y
 CONFIG_MMC=y
 CONFIG_MMC_SDHCI=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_DS1307=y
+CONFIG_RTC_DRV_DS1374=y
+CONFIG_RTC_DRV_DS3232=y
 CONFIG_EDAC=y
 CONFIG_EDAC_MM_EDAC=y
 CONFIG_DMADEVICES=y
diff --git a/arch/powerpc/configs/mpc85xx_defconfig b/arch/powerpc/configs/mpc85xx_defconfig
index 55765c8..fa1bfd3 100644
--- a/arch/powerpc/configs/mpc85xx_defconfig
+++ b/arch/powerpc/configs/mpc85xx_defconfig
@@ -209,6 +209,9 @@
 CONFIG_EDAC=y
 CONFIG_EDAC_MM_EDAC=y
 CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_DS1307=y
+CONFIG_RTC_DRV_DS1374=y
+CONFIG_RTC_DRV_DS3232=y
 CONFIG_RTC_DRV_CMOS=y
 CONFIG_RTC_DRV_DS1307=y
 CONFIG_DMADEVICES=y
diff --git a/arch/powerpc/configs/mpc85xx_smp_defconfig b/arch/powerpc/configs/mpc85xx_smp_defconfig
index 5c6ecdc..0b452eb 100644
--- a/arch/powerpc/configs/mpc85xx_smp_defconfig
+++ b/arch/powerpc/configs/mpc85xx_smp_defconfig
@@ -210,6 +210,9 @@
 CONFIG_EDAC=y
 CONFIG_EDAC_MM_EDAC=y
 CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_DS1307=y
+CONFIG_RTC_DRV_DS1374=y
+CONFIG_RTC_DRV_DS3232=y
 CONFIG_RTC_DRV_CMOS=y
 CONFIG_RTC_DRV_DS1307=y
 CONFIG_DMADEVICES=y