arm: kirkwood: NSA310S: Add DM USB, DM Ethernet, and DM SATA configs

Convert to Driver Model.

- Add DM USB, DM Ethernet, and DM SATA configs to nsa310s_defconfig
- Add CONFIG_DEFAULT_DEVICE_TREE to nsa310s_defconfig
- Move CONFIG_ENV_SECT_SIZE from board file to nsa310s_defconfig
- Add CONFIG_IDENT_STRING, and CONFIG_NET_RANDOM_ETHADDR
to nsa310s_defconfig

Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>

configs/nsa310s_defconfig

@@ -7,14 +7,16 @@ CONFIG_NR_DRAM_BANKS=2
 CONFIG_TARGET_NSA310S=y
 CONFIG_ENV_SIZE=0x20000
 CONFIG_ENV_OFFSET=0xE0000
+CONFIG_ENV_SECT_SIZE=0x20000
+CONFIG_DEFAULT_DEVICE_TREE="kirkwood-nsa310s"
 CONFIG_BOOTDELAY=3
 CONFIG_USE_PREBOOT=y
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="nsa310s => "
+CONFIG_IDENT_STRING="\nZyXEL NSA310S/320S 1/2-Bay Power Media Server"
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_FLASH is not set
-CONFIG_CMD_IDE=y
 CONFIG_CMD_NAND=y
 CONFIG_CMD_USB=y
 # CONFIG_CMD_SETEXPR is not set
@@ -44,3 +46,11 @@ CONFIG_USB_STORAGE=y
 CONFIG_LZMA=y
 CONFIG_BZIP2=y
 CONFIG_OF_LIBFDT=y
+CONFIG_DM=y
+CONFIG_BLK=y
+CONFIG_OF_CONTROL=y
+CONFIG_DM_USB=y
+CONFIG_DM_ETH=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_CMD_SATA=y
+CONFIG_SATA_MV=y