configs: kirkwood: Move RTC_MV to DM and Kconfig

Now that there is DM support in the RTC_MV driver update board configs
to use it.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/configs/sheevaplug_defconfig b/configs/sheevaplug_defconfig
index d27698f..b965ff4 100644
--- a/configs/sheevaplug_defconfig
+++ b/configs/sheevaplug_defconfig
@@ -5,6 +5,7 @@
 CONFIG_TARGET_SHEEVAPLUG=y
 CONFIG_IDENT_STRING="\nMarvell-Sheevaplug"
 CONFIG_DEFAULT_DEVICE_TREE="kirkwood-sheevaplug"
+# CONFIG_SYS_MALLOC_F is not set
 CONFIG_BOOTDELAY=3
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_HUSH_PARSER=y
@@ -18,7 +19,6 @@
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
-CONFIG_CMD_DATE=y
 CONFIG_CMD_EXT2=y
 CONFIG_CMD_EXT4=y
 CONFIG_CMD_FAT=y
@@ -29,9 +29,12 @@
 CONFIG_ISO_PARTITION=y
 CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_NAND=y
+CONFIG_DM=y
 CONFIG_MVSATA_IDE=y
 CONFIG_NETDEVICES=y
 CONFIG_MVGBE=y
+CONFIG_DM_RTC=y
+CONFIG_RTC_MV=y
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y