ARM: kirkwood: enable CONFIG_DM_USB for nas220

Enable CONFIG_DM_USB and CONFIG_BLK.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/configs/nas220_defconfig b/configs/nas220_defconfig
index 6bd308b..a244b8d 100644
--- a/configs/nas220_defconfig
+++ b/configs/nas220_defconfig
@@ -31,6 +31,7 @@
 CONFIG_ENV_IS_IN_NAND=y
 CONFIG_DM=y
 CONFIG_MVSATA_IDE=y
+CONFIG_BLK=y
 # CONFIG_MMC is not set
 CONFIG_MVGBE=y
 CONFIG_MII=y
@@ -38,5 +39,6 @@
 CONFIG_RTC_MV=y
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
+CONFIG_DM_USB=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_STORAGE=y