at91: corvus_defconfig: get rid of build warnings

fix CONFIG_OF_EMBED and add CONFIG_DM_USB
build warnings.

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/configs/corvus_defconfig b/configs/corvus_defconfig
index a1af2f1..af159ec 100644
--- a/configs/corvus_defconfig
+++ b/configs/corvus_defconfig
@@ -18,6 +18,7 @@
 CONFIG_BOOTARGS="console=ttyS0,115200 earlyprintk mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro,256k(env),256k(env_redundant),256k(spare),512k(dtb),6M(kernel)ro,-(rootfs) root=/dev/mtdblock7 rw rootfstype=jffs2"
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_BOARD_EARLY_INIT_F=y
+CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 CONFIG_SPL_NAND_SUPPORT=y
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="U-Boot> "
@@ -34,10 +35,11 @@
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_MTDPARTS=y
+CONFIG_DOS_PARTITION=y
 CONFIG_OF_CONTROL=y
-CONFIG_OF_EMBED=y
 CONFIG_DEFAULT_DEVICE_TREE="at91sam9g45-corvus"
 CONFIG_ENV_IS_IN_NAND=y
+CONFIG_BLK=y
 CONFIG_CLK=y
 CONFIG_CLK_AT91=y
 CONFIG_DFU_NAND=y
@@ -47,8 +49,8 @@
 CONFIG_PHYLIB=y
 CONFIG_ATMEL_USART=y
 CONFIG_USB=y
+CONFIG_DM_USB=y
 CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_STORAGE=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_MANUFACTURER="Siemens AG"
 CONFIG_USB_GADGET_VENDOR_NUM=0x0908