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/dreamplug_defconfig b/configs/dreamplug_defconfig
index 8090c9a..d7428ae 100644
--- a/configs/dreamplug_defconfig
+++ b/configs/dreamplug_defconfig
@@ -4,6 +4,7 @@
 CONFIG_TARGET_DREAMPLUG=y
 CONFIG_IDENT_STRING="\nMarvell-DreamPlug"
 CONFIG_DEFAULT_DEVICE_TREE="kirkwood-dreamplug"
+# CONFIG_SYS_MALLOC_F is not set
 CONFIG_BOOTDELAY=3
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_HUSH_PARSER=y
@@ -15,19 +16,21 @@
 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
 CONFIG_ISO_PARTITION=y
 CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_DM=y
 CONFIG_MVSATA_IDE=y
 # CONFIG_MMC is not set
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_NETDEVICES=y
 CONFIG_MVGBE=y
+CONFIG_DM_RTC=y
+CONFIG_RTC_MV=y
 CONFIG_SYS_NS16550=y
 CONFIG_SPI=y
 CONFIG_KIRKWOOD_SPI=y